Abu volcan est un groupe de 56 plus petits centres volcaniques avec aucune individuel grand volcan central, situé près de la côte de la mer du Japon à sud-ouest Honshu, au Japon, 80 km à l'ouest de Hiroshima. Le groupe, également connu sous le nom la Abu monogénétique volcan Group (AMVG), couvre 400 km2 et comprend des coulées de lave basaltique-de-dacitiques, volcans petit bouclier (certaines avec les cônes de scories associés) et dômes de lave. Son volume total est d'environ 4 km cube, avec aucun centre individuelle étant plus grande que 0,5 km3. IRAO-yama (641 m) est le point culminant. Certains des centres volcaniques du volcan Abu forment des îles au large ou évents sous-marin. La plus récente éruption du volcan est une explosion de cheminée centrale à Kasa-yama ca. il y a 8000 ans. -> Voir la description complète
Le volcan Acamarachi (également connu sous le nom de Cerro Pili) est un volcan situé dans le nord du Chili. Le volcan andésitiques dacitiques a des pentes très raides (angle de 45 degrés) et constitue le point culminant de cette partie de la Cordillère des Andes. Le volcan contient un mal préservé le cratère du sommet et un dôme de lave grand sur le flanc nord. Il n'y a aucune coulées de lave connus de l'Holocène times, suggérant que le volcan pourrait être éteint. Le cratère de sommet contient un lac environ 10-15 m de diamètre, ce qui est peut-être le deuxième plus haut lac de cratère dans le monde. Acamarachi est situé très près le volcan Colachi, qui est seulement 6 km NNO, mais les deux volcans ont des systèmes de magma indépendant.
Acotango volcan est un volcan mal connu à la frontière entre le Chili et la Bolivie. Une coulée de lave jeune sur le flanc nord suggère que le volcan a eu des éruptions dans le passé 10 000 ans et pourraient être considérés comme actifs.
Volcan Adatara est un groupe de stratovolcans qui se chevauchent est du volcan de Bandai et situé à 15 km SO de la ville de Fukushima. Son sommet le plus élevé est Minowa-yama stratovolcan, au nord de Tetsu-zan, qui est le volcan actif. Les formes de groupe une N-S réalisé chaîne allongée. Le volcan est connu pour ses sources thermales et les fumerolles. IO-gawa ("rivière soufre") quitte le complexe à l'Ouest. 72 travailleurs d'une mine de soufre dans le cratère du sommet ont été tués lors d'une éruption en 1900. Les éruptions historiques étaient tous de dans le cratère Numonotaira 1,2 km de large, à 350 m de profondeur de Tetsu-zan. -> Voir la description complète
AGATE est une variété microcristalline de Quartz (silice), principalement de calcédoine, caractérisée par sa finesse du grain et colorée par zone avec une certaine luminosité des couleurs -> Voir la description complète
Volcan de Agua de Pau dans l'île de Sao Miguel centrale contient une caldeira externe 4 x 7 km formé il y a environ 30 000 à 45 000 ans et une caldeira intérieure 2,5 x 3 km qui a été créée il y a environ 15 000 ans. -> Voir la description complète
Aguilera est un volcan dacitique dans les Andes chiliennes plus au sud et situé à l'ouest du lac Argentine et NE de Peel Fjiord. Son histoire géologique est mal connus, mais il y Aguilera doit avoir eu une grosse éruption explosive inférieur à environ 3600 ans, qui a laissé une couche de tephra éminents. Aguilera appartient à la Zone volcanique de Australandean du sud de la Patagonie. -> Voir la description complète
Mont Agung ou Gunung Agung est un volcan actif à Bali. Ce volcan est le point culminant de l'île. Il domine la région environnante influant sur le climat. Les nuages viennent de l'Ouest et Agung prend leur eau afin que l'Ouest est luxuriante et de vert et de l'est sec et aride. -> Voir la description complète
Akagi volcan est un stratovolcan large central Honshu, 110 km NNO de Tokyo. Elle fait partie de la Par préfectoral Akagi. Le volcan contient une caldeira de sommet 3 x 4 km de diamètre qui contient le lac Ono dans le NE. Il est incertain si le volcan a éclaté au cours des années 2000. Rapports sur l'activité possible au IXe siècle, en 1251 et 1938 sont considérés comme peu fiables. -> Voir la description complète
Akan volcan (阿寒岳, akan-dake) est l'un des volcans les plus actifs d'Hokkaido. Akan se compose d'un grand 24 x 13 km de diamètre et de la caldeira d'un groupe de jeunes cônes andésitiques partie Holocène. Le point culminant de ce complexe est la Meakan Mont (1499 m) strato-volcan. Les fréquentes éruptions historiques survenus tout à partir du groupe Me-Akan, à l'est du lac Akan. Me-Akan volcan (雌 阿寒岳 Meakan-dake) se compose de 9 cônes se chevauchent. Son sommet a trois cratères. Me-Akan a eu au moins 17 petites éruptions phréatiques depuis le début du 19ème siècle et à partir d'études géologiques, il est connu qu'il ya eu au moins quatre grandes éruptions magmatiques avec des écoulements pyroclastiques ont eu lieu dans les temps préhistoriques au cours des 10.000 dernières années.
Lac Akan fait partie du Parc national Akan. Il est connu pour une algue verte rares (marimo) qui peut atteindre environ la taille d'un ballon de soccer. La seule ville autour du lac est la station de Akankohan connue pour ses sources chaudes et les "bokke", les piscines de boue bouillonnante trouve au bord du lac. -> Voir la description complète
Akita-Komaga-take volcano is an active volcano in northern Honshu. It is located 10 km east of Tazawa Lake, near the border of Akita and Iwate prefectures, and forms the southern extremity of the Towada-Hachimantai National Park.
The volcano consists of a main edifice cut by 2 calderas that formed after 2 large explosive eruptions between 11,600 and 13,500 years ago. The calderas are partially filled by younger cones. Historic activity consists of small eruptions from cones and fissure vents inside the southern caldera.
It is suspected that Akita-Komaga-take's eruptions are often not preceded by much seismic activity, as was the case during the last eruption, in 1970. -> Voir la description complète
Akita-Yake-yama volcano is an active stratovolcano in NW Honshu. It is one of several Japanese volcanoes named Yake-yama ("Burning Mountain").
Akita-Yake-yama is the most recently active of a group of overlapping volcanoes immediately west of the Hachimantai volcanic group. Its cone is 7 km wide at the base and contains a 600 m wide summit crater containing a small lava dome, Onigajo. Most of the volcano's frequent eruptions were only phreatic and often ejected mud. The last magmatic eruption was the formation of the Onigajo lava dome in the summit crater about 5000 years ago.
There are fumaroles and hot springs around the volcano, including the strongly radioactive Tamagawa spa at the western foot of the volcano.
Tsugamori volcano to the east is a stratovolcano of roughly the same height as Yake-yama and has a 2-km-wide crater breached to the NE. The flat-topped parasitic lava dome of Kuroshimori lies 4 km south of Yake-dake.
Akuseki-jima volcano is a small stratovolcano in the southern Ryukyu Islands, Japan. It forms the island of the same name, which measures 2.5 x 3.2 km in diameter and is surrounded by steep cliffs with beaches present only on the SW and SE sides.
Although no direct date exists, it is plausible that Akuseki-jimais is still active.
Akuseki-jima Island
Only about 80 people live on the small island. Access to Akuseki-jima island is limited to one ferry running twice a week traveling 11 hours from Kagoshima. The island has no sources and depends on rainwater as water source.
July 22, 2009 solar eclipse
It was one of the best observation spots (one of the closest inhabited areas to the location of maximum eclipse duration) for the Solar eclipse of 22 July 2009. -> Voir la description complète
Al Harrah volcano is a large basaltic volcanic field in NW Saudi Arabia near the Jordanian border. It comprises 15,200 sq km of basalt lava flows and forms the southern third of the Harrat Ash Shamah volcanic field, which extends from Syria through Jordan into northern Saudi Arabia. -> Voir la description complète
Alaid est le volcan plus haut et les plus au nord dans les îles Kouriles. Le stratovolcan symétrique s'élève à 3000 m de fond de la mer et forme une petite île. Il possède un cratère de 1,5 km de large sommet violé au sud. Il est un des volcans les plus actifs des Kouriles. Grandes éruptions explosives a eu lieu en 1790 et 1981 et ont été parmi les plus importants dans les Kouriles à l'époque historique. -> Voir la description complète
Aliso volcan est un stratovolcan nouvellement découvert complexe au pied des Andes équatoriennes, est du volcan Antisana et au sud-ouest de la ville de Baeza oriental. Il contient des coulées de laves andésitiques, des dômes de lave et des dépôts de nuée ardente. Aliso volcan est en sommeil et a été actif dernier il y a environ 2000 ans. -> Voir la description complète
Alligator Lake in southern Yukon, Canada, is a group of basaltic cones and lava flows (the Miles Canyon basalts). It is located at the northern extremity of the Stikine volcanic belt, 30 km southwest of the capital city Whitehorse.
The field contains 2 cinder cones on top of a small basaltic shield volcano which is eroded by glacial cover. The cones probably post-date the ice age and seem to be a few thousands years old. Lava flows from both cones traveled to the north and were erupted simultaneously. The longest lava flow extends 6 km N and reaches a width of 10 km.
El Altar is an extinct stratovolcano on the western side of Sangay National Park in Ecuador, 170 km south of Quito. Altar was last active about 2 million years ago and contains a caldera open to the west, which contains a lake.
A large rockslide caused fatalities in 2000. On 13 October 2000, a large block of andesitic breccia with a volumne of ca. 1.5 million m3 rock broke off from near the summit and slid 900 m down into a caldera lake. This impact caused a 50 m high tsunami which overflowed the caldera and produced a lahar, that killed 13 people -> Voir la description complète
Une série de fissures éruptives près du volcan Dalaffilla, située dans la partie finale de la zone septentrionale de la chaine de l'Erta Ale (Désert Danakil, Ethiopie), parmi lesquelles il y eu beaucoup d'émissions de coulées de lave basaltique volumineuses, comme récemment en Novembre 2008. -> Voir la description complète
The Aluchin volcanic group is a cluster of 4 young cinder cones located in the Bilibino Region, in the Aluchin and Burgakhchan river basins in western Chukotka (Siberia). The cinder cones of Aluchin volcano could have erupted less than 10,000 years ago. -> Voir la description complète
Amasing volcano lies off the southern coast of Halmahera Island, Indonesia, on the small island of Bacan (Palau Batjan). Bukit Amasing (Amasing Hill) is the largest and NW most of 3 small andesitic volcanoes, the other two being Cakasuanggi and Dua Saundara. No recent activity is know from Amasing, and the volcanic edifice is strongly eroded, suggesting it might be extinct.
The Ambalatungan group is a cluster of several volcanoes on northern Luzon Island, Philippines, conprising Ambalatungan, Bumabag, Podakan, and Binuluan volcanoes, aligned roughly E-W.
Ambalatungan volcano is dacitic in composition, and has a steep-walled crater, inside which there are hot springs and strong fumarole vents which produce loud noises and have sulphur deposits.
Bumabag volcano is located only 3 km east of Ambalatungan and has 2 craters that also produce strong fumarolic activity.
Podakan volcano is 1 km SE of Bumabag and also has a large steam vent.
A possible steam eruption might have occurred from Mount Binuluan in 1952, which killed 12 people by a sulfur-rich debris flow.
Ambitle volcano is an active stratovolcano on the 16 km wide N-S and 13 km E-W Ambtitle Island, located 50 km off the SE coast of New Ireland, Papua New Guinea.
Ambtitle is the largest of the Feni Islands, along with the extinct Pleistocene Babase Island / volcano, which are near the SE end of a volcanic island chain north and east of New Ireland.
Ambitle volcano contains a 3 km wide caldera and lava domes. It last erupted about 2300 years ago from a vent on the east side of one of the lava domes inside the caldera forming an explosion crater (maar).
Ambitle is particularly interesting for its shallow-marine hydrothermal vent system of Tutum Bay, which emits hot, acidic, arsenic-rich fluids into sea water. -> Voir la description complète
Le champ volcanique de Amboy couvre une superficie de 70 km2 entre le lac à sec à l'ouest de Bagdad et Bristol Dry Lake, à l'est de la Sesert Mojave, en Californie. Il contient essentiellement des coulées de lave pahoehoe. Amboy cratère correcte est un cône de scories de premier plan dans le NE du champ de lave. -> Voir la description complète
Ambrym est un grand volcan basaltique avec une caldeira de 12 km de large. C'est non seulement un des volcans les plus en activité de l’archipel du Vanuatu, mais également dans le monde. Ses cratères les plus actifs contiennent souvent des petits lacs de lave. -> Voir la description complète
Amiata est un dôme de lave complexe situé à environ 20 km NW du lac de Bolsena dans la région de Toscane du sud de l'Italie. -> Voir la description complète
Amorong volcano a small lava dome in NW Luzon Island, 80 km NNE of Pinatubo volcano, and belongs to the Eastern Volcanic Chain or Balungao Group, a chain of subduction volcanoes behind the Manila Trench.
It is the only of a group of several lava domes that still has fumarolic activity. It was active from about 740,000 years ago. -> Voir la description complète
Traduit littéralement, « l'enfant de Krakatau », Anak Krakatau est l'île la plus jeune de l'archipel volcanique Krakatau dans le détroit de la sonde. Elle a été formée au cours de nouvelles éruptions en 1927, quand une nouvelle île est apparue dans la caldeira laissées par l'énorme éruption du volcan Krakatoa en 1883.
Anatahan volcano forms the small 9 x 3.7 E-W elongated Anatahan Island in the northern Marianas, about 120 km north of Saipan, the regional Commonwealth of the Northern Mariana Islands capital.
The volcano is at the southern end of the 1500 km long chain of volcanoes formed by the Izu-Bonin-Mariana subduction-zone volcanic arc.
The island is only a tiny fraction (about 1%) of the volcano's entire volume, which rises 3700 m from the sea floor and has a basal diameter of 35 km. It is topped by a 5x2.3 km wide E-W elongated summit caldera. Its principal crater is a 1.4x1.2 km wide and 200 m deep pit crater in the eastern part of the caldera. The highest point of the island is on the western rim.
The first known volcanic activity occurred in 2003, when the volcano came back to life, and has been in a state of frequent eruptions since then. -> Voir la description complète
The Andahua-Orcopampa volcanic field is a 50 km x 30 km large field of monogenetic vents in the Andahua valley area, 20 km ENE of Nevados de Coropuna stratovolcano. It is known locally as the "Valley of the Volcanoes".
The field contains scoria cones and lava flows, some of which are very young and from historic eruptions.
Strombolian eruptions and lava flows have destroyed buildings from the time of the Incas, and there were uncertain reports of activity in 1913. Lava flows have repeatedly dammed the Río Andagua valley modified the local topography. -> Voir la description complète
L'Andésite est une roche volcanique de couleur grise à noire avec un pourcentage de silice dans sa composition chimique de 52% à 63% en poids de (SiO2). Les andésites sont des roches que l'on trouve typiquement dans la constitution des dômes de lave et des stratovolcans. -> Voir la description complète
Anjuisky volcano is a cinder cone in the south Anjuisky Range east of Kolyma River. Anjuisky cinder cone is 120 m high and has a 300 m wide and 75 m deep crater. -> Voir la description complète
anneau de fumée
(volcanologie: anneau de fumée volcanique, anneau de gaz, anneau de vapeur)
Un phénomène rare, où un anneau de vortex visible de vapeur et de gaz est expulsé d'une cheminée volcanique. -> Voir la description complète
The Antillanca group of stratovolcanoes is located 100 km NE of Puerto Montt in central Chile, at the eastern shore of Rupanco Lake. The cluster consists of scoria cones, maars and small stratovolcanoes and covers an area of 380 sq km.
The most prominent volcanic edifice is the Casablanca stratovolcano which erupted about 2910 and 2260 years ago.
Older stratovolcanoes of the Antillanca group include Sarnoso volcano on the SW side and Fiuchá volcano on the NW side.
Geothermal areas are found in various spots on the NW side of the group.
(source: USGS/GVP)
Antisana volcano is a large, glacier covered stratovolcano 50 km SE Quito, Ecuador. It is located on the eastern margin of the Cordillera Real, at the latitude where the volcanic chain of the Northern Volcanic Zone is widest. Antisana is one of the largest volcanoes and highest peaks in Ecuador.
The Antisana complex contains 2 generations of volcanic edifices, an older volcano cut by calderas and eroded by glaciers and a young cone. The only confirmed historical eruption was from 1801 to 1802, when a lava flow was erupted from a vent NNE of the summit.
Antisana volcano is iside the Condor Bioreserve as part of the Antisana Ecological Reserve which comprises and area of 296,000 acres. -> Voir la description complète
Antofagasta de la Sierra is a young volcanic field in Catamarca, NW Argentina, located SW of Beltran volcano and between the Salar de Antofalla on the west and the massive Cerro Galán caldera on the east.
The field contains some of the youngest volcanic vents of vents of the Argentinian Puna region. It contains young looking basaltic-andesite scoria cones and recent-looking lava flows, which could be only a few thousand years old.
Nearby Salar de Antofalla volcanic field contains scoria cones and lava flows east of the NE-SW-trending Salar de Antofalla. It, too, looks young, but no precise ages are known.
Antuco volcano in central Chile rises majestically above the SW shore of Laguna de la Laja. Antuco is one of Chile's more active volcanoes. Mild explosive eruptions were recorded in the 18th and 19th centuries from both summit and flank vents, and historical lava flows have traveled into the Río Laja drainage. -> Voir la description complète
Aoga-shima volcano (青ヶ島, Aogashima) is a stratovolcano forming a beautiful small 2.5 x 3.5 km island with steep cliffs in the Izu island chain, 300 km south of Tokyo.
The dominantly basaltic Aoga-shima volcano contains a complex caldera (Ikenosawa Crater) with a diameter of 1.7 x 1.5 km. 2 cones were built inside the caldera during the volcano's last eruptions in 1781-85.
Activity of Aogashima volcano includes pyroclastic flows and lava flows from both summit and flank vents. -> Voir la description complète
Volcán Apagado (also known as Hualiaque) is a young cinder cone 50 km SE of Puerto Montt town. It is located in the center of the peninsula between the Gulf of Ancud and the Reloncaví estuary, west of Hornopirén volcano and SW of Yate volcano in southern Chile.
The summit contains a well preserved unvegetated crater 360 x 400 m in diameter and there is a small lava flow from a second cone nearby. The age of the cones is unknown, but judging from the young morphology, it could be Holocene.
Apaneca Range (Cuyanausul Range) is a group of E-W trending stratovolcanoes and geothermal areas located in western El Salvador, between the Santa Ana complex and the Guatemala border, about 6 km SE of Ahuachapin town. The volcanoes are basaltic-to-andesitic and Pleistocene and Holocene in age. -> Voir la description complète
Apastepeque volcano is a young volcanic field 8 km north of San Vicente town in central El Salvador. The Volcanic features contains about 24 closely spaced cinder cones, lava flows, lava domes, and maars. The latter are now filled by lakes, such as Laguna de Apastepeque and Laguna Chalchuapán. -> Voir la description complète
Apo volcano is the highest mountain in the Philippines, and its name means "Master" or "Grandfather".
Apo volcano is an a basaltic to basaltic-andesitic stratovolcano and part of the Central Mindanao Arc, but its volcanic history is poorly known. The densely forested volcano has a flat summit with 3 peaks, the highest of which in the SW is known as Davao volcano and has a 500 m wide crater with a small lake.
The youngest crater is located on the northern peak. Several fumaroles and sulfur deposits occur on the volcano, most notably fumaroles along a fissure on the SE side down to 2400 m elevation.
The Mt. Apo Geothermal Field is a 8.4 km2 geothermal exploration field near Mt Apo, which has been being exploited since October 1996.
Apoyeque volcano forms the broad Chiltepe Peninsula in western Nicaragua and extends into south central Lake Managua
The Apoyeque volcano is part of a larger volcanic complex and consists of a low 500 m high shield cut by a 2.8 km wide and 400 deep lake-filled caldera and a 2.5 x 3 km wide explosion crater, the lake-filled Xiloá (Jiloá) maar, immediately SE of Apoyeque.
Present activity consists of active fumaroles in Laguna Xiloá and at the northern caldera rim. -> Voir la description complète
Aracar volcan est un stratovolcan probablement toujours actif en Argentine NW proche de la frontière avec le Chili. Le volcan a un bien préservé 1,5 km sommet large cratère avec un petit lac de cratère et flancs érodés abruptes. On ne sait pas s'il y a l'activité de l'Holocène (passé 12 000 ans). -> Voir la description complète
The 5165-m-high, double-peaked stratovolcano Mount Ararat, also known as Agri Dagi, is Turkey's highest, largest volume, and easternmost volcano. -> Voir la description complète
Arayat is a forested stratovolcano above the flat Central Plain of Luzon Island and located NE of Angeles city, Philippines. It belongs to the Eastern Volcanic Chain, which includes Mounts Balungao, Cuyapo, Amorong and Arayat volcanoes.
Mt. Arayat's cone is probably built upon an older crater of 900 m diameter, whose remnants form the northern (1026 m) and southern (920 m) peaks.
There are no known eruptions in historic times, but weak fumarolic activity is present on the NW summit of Arayat volcano. -> Voir la description complète
Arenal, a major tourist attraction in Costa Rica, is one of the most active volcanoes of Central America. Since a major eruption in 1968, it has been in near-continuous activity building a lava dome and displaying mild explosive activity from the summit crater. -> Voir la description complète
Cerro Arenales is an isolated stratovolcano in southern Chile, located in the Northern Patagonian Ice Field 140 km SSW of Hudson volcano and 195 km north of Lautaro volcano.
The volcano was recognized as a volcano during a 1963 expedition traversing the Northern Patagonian Ice Field led by Eric Shiptononly.
The only known eruption was in early 1979 and was detected by a small tephra deposit observed blanketing the icecap on the SW flank on a satellite image from 8 March 1979.
Note: an active volcano with a similar name Arenal is located in Costa Rica.
Arintica volcano is a stratovolcano in the Arica y Parinacota region of Chile near the border with Bolivia.
There are no known Holocene eruptions, and the volcano might be extinct, although little is known about it.
Arshan volcano is a newly discovered active volcanic field in the central Da Hinggan Mountains of Inner Mongolia in NE China, 70 km from the border with Mongolia.
The field contains more than 40 cinder cones, tephra layers and lava flows. The most recent volcanic eruptions occurred from the perfectly preserved 362 m high Yanshan cone and the 140 m deep Gaoshan crater.
These vents produced basaltic lava flows to the northwest and formed natural dams blocking branches of the Halahahe river, creating 6 lakes.
Asama volcano is the most active volcano of Honshu and one of the volcanoes with the longest recorded history of documented eruptions. It is located 130 km from Tokyo in central Honshu, overlooking the resort town of Karuizawa.
Asama's activity is typically explosive, including frequent strombolian to vulcanian activity. It has had several major eruptions, including 2 plinian eruptions in 1108 and 1783 AD. -> Voir la description complète
Aso volcano in central Kyushu Island in southwestern Japan is one of the world's most active volcanoes. In recent years, it has been the site of frequent ash eruptions.
Aso is no single edifice, but a complex of active vents in the center of a large 24 km wide caldera. -> Voir la description complète
Atacazo volcano is part of the Atacazo–Ninahuilca Volcanic Complex in the Western Cordillera of Ecuador and located 10 km southwest of the capital of Ecuarod, Quito.
The andesitic Atacazo stratovolcano is a successor of the older La Carcacha stratovolcano. It was built above a 6 km wide and 900 m deep caldera. The caldera is breached to the SW and contains 3 Holocene dacitic domes. The youngest lava dome, Ninahuilca, erupted about 2300 years ago. 2 andesitic lava domes are also found on the SE flank.
Several large Plinian eruptions have occurred at the volcano during the past 10,000 years and accompanied the growth of the lava domes. The formation of the most recent dome, Ninahuilca Chico, was accompanied by explosive eruptos that produced pyroclastic flows that flowed up to 35 km distance through valleys towards the west. -> Voir la description complète
Atlin is a group of young cinder cones and lava flows on the Teslin Plateau east of Lake Atlin in western British Columbia, Canada. The largest cone is 1880-m-high Ruby Mountain (named for the brilliantly colored tephra deposits), which has been partially eroded by glaciation. -> Voir la description complète
Atsonupuri volcano is a mostly basaltic stratovolcano in the southern Kurile Islands, Russia, located ca. 150 km NE of Hokkaido, Japan.
Atsonupuri volcano forms a prominent peninsula at the SW side of Iturup Island connected by a 30 m low isthmus. The volcano has often had strombolian eruptions such as its historic eruptions and produced a few lava flows. -> Voir la description complète
Aucanquilcha est un stratovolcan massive dans la zone volcanique centrale des Andes au nord du Chili. Volcn Aucanquilcha (aussi connu comme Cerro Aucancquilche) est le plus jeune d'environ 20 volcans et de cônes qui forment le cluster volcanique Aucanquilcha et l'un des plus grands volcans du nord du Chili.
Plus élevés au monde colonie permanente humaine était situé en dessous d'une mine de soufre dans la région sommet du Cerro Aucanquilcha à une altitude de 5500 m. La mine a été exploitée entre 1913 et 1990. Le volcan a également un des plus élevés les routes du monde atteignant 5900 m d'altitude.
Aucanquilcha Les flux les plus jeunes de lave du volcan sont plus jeunes que 10.000 ans, et recouvrent Morains glaciaires sur les flancs supérieurs du sud. A l'heure actuelle, il ya une activité fumerolles du volcan. -> Voir la description complète
The Auckland Volcanic Field directly underlies the largest city of New Zealand and consists of more than 50 basaltic cones, maars and lava flows. It covers an elliptical area of 29 (N-S) x 16.5 (E-W) km and has been active for the past 140,000 years, during which is has produced about 7 cubic km of mostly basaltic lava. The last eruption was as recently as about 600 years ago when the cone of Rangitoto Island was formed. About 20 eruptions have occurred during the past 20,000 years, suggesting an average recurrence interval of approx. 1000 years.
Since eruptions could (and likely will) occur again in the future, it is a considerable hazard to Auckland city, especially since the time between first signs (seismic swarms, ground movements, gas emissions) to an eruption could be relatively short (weeks to months). -> Voir la description complète
Augustine est le volcan le plus actif de l'arc aléoutienne oriental. Il se compose de plusieurs dômes de lave qui se chevauchent souvent produisent des éruptions explosives et sont bien connus pour s'effondrer, produisant des avalanches lumineuses (flux de bloc et de cendres). Volcan Augustine avait une éruption dévastatrice 1883 quand grandes parties du sommet du dôme complexe s'est effondré. Au siècle suivant, plusieurs éruptions associées à la croissance du dôme ont restauré de hauteur du volcan à nouveau. Éruptions historiques après cette date étaient généralement explosive, produisant des coulées pyroclastiques Ponce et des flux de bloc-et-ash, suivie de repousse des dômes de lave. -> Voir la description complète
Avachinsky imposante ci-dessus Petropavlovsk, plus grande ville du Kamtchatka, est un des volcans les plus actifs du Kamtchatka. Il éclate en général tous les deux ans à la production de décennies, souvent les flux de cendres et de lahars. -> Voir la description complète
Un effondrement soudain de matériaux volcaniques d'un côté instable d'un volcan. Les avalanches de débris sont un type particulièrement violent de coulées pyroclastiques (dans son sens le plus large).
The Azas Plateau (also known as the (Northeast) Tuva or Khamsara-Biykhem Plateau) is a large volcanic field is west of the SW tip of Lake Baikal and north of the border with Mongolia. The volcanic field contains cinder cones and lava flows, some of which are less than 10,000 years old. -> Voir la description complète
Azufral volcano (Azufral de Túquerres) is a stratovolcano in southern Colombia with a 2.5x3 km wide caldera 35 km SW of Galeras volcano. The last eruption took place about 1000 years ago. -> Voir la description complète
Babuyan Claro (Mt. Pangasun) is the largest and second youngest of 5 volcanoes that built up Babuyan Island, 100 km off the north coast of Luzon, Philippines. Babuyan Claro is an active stratovolcano of ca. 7 cubic km volume and has 2 summit craters of 300 and 400 m in diameter.
Smith volcano (Mt. Babuyan) 4 km to the NW of Babuyan Claro is the youngest volcano on the island and forms a beautiful 668 m high symmetrical basaltic-andesite cinder cone with ca. 3 cubic km volume.
Both Babuyan Claro and Smith volcanoes have apparently been active in historical time, although it is not always certain which volcano erupted. Eruptions at Babuyan Claro are typically strombolian and/or phreatomagmatic.
The Askedna Hot Spring is located at the southern base of Babuyan Claro. -> Voir la description complète
Mount Bachelor (formerly known as Bachelor Butte) in central Oregaon is a symmetrical stratovolcano, which is part of a 25 km long volcanic chain SE of South Sister.
The chain is aligned N-S and consists of the main volcano of Mt Bachelor itself, cinder cones, small shield volcanoes, and lava flows. The youngest eruption (dated by comparison with known dates of overlying and underlying layers) occurred about 6000 years ago at the Egan scoria cone on the north flank. It produced a lava flow that overlies (=is younger than) ash from the 6850 year BP eruption of Crater Lake. -> Voir la description complète
Bagana volcano on Bougainville Island is one of the world's most active volcanoes. It has erupted frequently since its discovery in 1842. It is located on a remote part of central Bougainville Island in the Northern Solomon Province of Papua New Guinea.
Bagana volcano is a massive, symmetrical, roughly 1750-m-high cone built largely by rapid accumulation of viscous andesitic lava flows. The present-day cone might only be 300 years old.
Major eruptions occurred in 1950, 1952, and 1966. Bagana has been in near- continuous activity since 1972, creating slow-moving lava flows, and occasionally ash explosions that sometimes produce pyroclastic flows.
The volcano has been in near-continuous activity since the earliest records from the 18th century. -> Voir la description complète
Changbaishan (or Baitoushan) volcano is a large stratovolcano at the NE China - N Korean border and is and the most active in China.
It is also known as Tianchi, or in Korean as Baegdu or P'aektu-san (Paektusan) volcano.
One of the largest explosive eruptions in the world during the past 10,000 years occurred around 969 ±20 AD and is known as the Baitoushan eruption. It erupted about 30 cubic km of magma, about half as much as Tambora in 1815 AD or 3 times as much as Krakatau in 1883. The eruption produced rhyolitic and trachytic pumice and ash fall as far as northern Japan, and formed part of the present-day caldera.
Small eruptions have been recorded in historic times since the 15th century, the last being a small explosion in April 1903.
Out of China's 14 active volcanoes, Baitoushan is considered the most dangerous volcano. The major hazard are lahars from the huge lake in the 5-km-wide caldera that could threaten the mostly Korean population of about 100,000 living near or on the slopes of the volcano, as well as the many tourists visiting the volcano in summer. -> Voir la description complète
Bakanovi volcano is an extinct volcano 16 km east of Bagana volcano on Bougainville Island, Papua New Guinea. The small volcano is deeply eroded and was built above an eroded 4 km diameter caldera. -> Voir la description complète
Balagan-Tas volcano (also known as Indigirsky) is a cinder cone west of the town Zashiversk, about 1300 km SSW of Bennet Island in Siberia. It is located at the Indikirika River near the northwest boundary of Momo-Selenniak depression.
The volcano erupted basaltic lava flows. A historic eruption is reported to have taken place in 1775, but not included in the Smithsonian's Global Volcanism Database.
Balatukan (also known as Balingoan or Balatocan) is a massive compound stratovolcano on the SW shore of Gingoog Bay, 15 km SW of Gingoog city in north-central Mindanao, opposite Camiguin Island, Philippines.
Lava flows on its flanks are 140,000 years old and it is not known whether there are younger volcanic products. Although the volcano still has fumarolic activity, it might be extinct, as the strong degree of erosion of its flanks suggests.
Balbi is a large stratovolcano and the highest point on Bougainville Island, Northern Solomon Islands, Papua New Guinea.
It is not certain whether the volcano has erupted in historic times, as some local traditions suggest. An active fumarole field is located at Balbi's 600 m wide summit crater and on its western flank. -> Voir la description complète
Bald Knoll is the youngest of a group of basaltic cinder cones on the SW part of the Paunsaugunt Plateau in southern Utah, between the southern end of Bryce Canyon National Park and the western margin of Grand Staircase-Escalante National Monument.
The Bald Knoll cinder cone probably erupted only a few thousands years ago. It has an intact crater, which has produced a massive youthful-looking lava flow that traveled about 12 km to the SSE.
Buck Knoll and Black Knoll are 2 other cinder cones to the west, located on the western side of Kanab Creek.
Baluan volcano forms the a small 5.5 km wide circular Baluan Island located south of Manus Island.
It is the subarial part of the southernmost and largest single volcano in the St Andrew Strait in the Bismarck Sea northwest of New Britain.
Baluan is mainly basaltic in composition. The island is densely forested and the volcano contains a large 1 x 0.5 km elliptic vegetated summit crater (Sabroma) and several flank vents. Some of these might be less than 10,000 years old.
There are warm springs along the coast which is surrounded by reefs.
The only historical activity is an uncertain report of a submarine eruption near the island in 1931. -> Voir la description complète
Baluran is the easternmost volcano in Java and occupied the NE tip of the island. Gunung Baluran is a small andestic volcano with a broad U-shaped crater breached to the NE.
Baluran is located in the Baluran National Park which covers 25,000 hectares and is famous for its abundant wildlife including buffalo, deer, banteng, leaf monkeys, monitor lizards, squirrels, fruit bats, civet cats, and leopards.
Balut volcano (also known as Sanguil) is a small island of the Sarangani group south of the Batulaki Peninsula at the south end of Mindanao Island in the Philippines.
The age of the last activity on Balut volcano is unknown, but hot springs and thermal areas are active on the W and SW flanks of the volcano.
Bam volcano is one of the most active volcanoes in Papua New Guinea. A mostly submerged stratovolcano forms the small 2.4 km x 1.6 km oval shaped Bam Island. Bam volcano belongs to the Bismarck volcanic arc north of New Guinea. Bam is the SE-most of the Schouten Islands and ocated 40 km NNE of the mouth of the Sepik River.
Bam volcano contains 2 peaks, the NW peak being the active summit, and the SE peak an older cone and slightly lower.
The oval 300 m diameter and 180 m deep summit crater of Bam is free of vegetation due to frequent and recent volcanic activity. The crater has steep walls with exposed lava flows dipping inwards.
The historic eruptions, recorded since 1872, were small to moderate vulcanian eruptions from the summit crater. Hot springs are found on the island. -> Voir la description complète
Bamus volcano (also known as South Son, Ulawun being the father) is a symmetrical stratovolcano SW of Ulawun volcano, 16 km inland from Stettin Bay.
The volcano is thickly covered by rainforest and fern thickets. The last confirmed activity of Bamus was around 1888, as villagers describe in local accounts. -> Voir la description complète
Banahaw volcano is a complex of 3 volcanoes 80 km SE of Manila, Philippines. The Banahaw volcanic complex includes Mt Banahaw (2158 m), San Cristobal (1470 m), and Banhao de Lucban (1870 m) volcanoes.
Mild explosive eruptions might still occur at the Banahaw volcano complex, although none of the reports of historic activity can be verified by deposits or credited sources. -> Voir la description complète
Un banc de lave est une plate-forme formée par des nouvelles coulées de lave qui s'étend de l'ancien rivage ; en particulier, cela peut être observé sur Hawaï au volcan Kilauea pendant les périodes quand la lave se déverse dans l'océan, formant de nouvelles terres. -> Voir la description complète
Banda Api volcano forms a small isolated 3-km-wide island in the Banda Sea, Indonesia, 130 km south of Makulu Island. The volcano rises 4000 m from the sea floor and is the most recent and very active cone of a 7 km wide volcanic caldera mostly under water.
Despite its remote location, it ranks among the volcanoes in Indonesia with the best documented history (since 1586), thanks to its strategic position at a cross-road of the Portuguese and Dutch spice trade sailing routes.
is an isolated volcano located in the Banda Sea
The caldera has 3 other islands forming the southern and eastern walls: Lonthor, Pisang and Kapal.
Historical activity of Banda Api was mostly strombolian type with occasional lava flows, some of which which have reached the sea. Because of its (for Indonesia) unusually effusive behaviour and frequent activity, Banda Api has also been given the nickname "Etna of the Banda Sea".
Among divers, the surrounding waters are (have been?) famous for the specatcularly large numbers of sea snakes that used to be found here mating in swarms of thousands. -> Voir la description complète
Bandai volcano (Bandai-san), one of Japan's most known active volcanoes, is an complex andesitic stratovolcano rising above the north shore of Lake Inawashiro.
The volcano is located in the southern part of the NE Honshu volcanic arc.
The last magma was erupted at Bandai about 25,000 years ago, but during the past 5000 years, 4 major phreatic explosions have occurred at the volcano. 2 of them occurred in historical time, in 806 and 1888.
In 1888, the youngest edifice of Bandai, Ko-Bandai, collapsed in a catastrophic way after a large phreatic eruption, producing a debris avalanche that buried several villages and formed several large lakes. Seen from the south, Bandai presents a conical profile, but much of the north side of the volcano is missing as a result of the collapse of Ko-Bandai volcano during the 1888 eruption. -> Voir la description complète
Banua Wuhu is a submarine volcano in the Sangihe Islands, Indonesia, 45 km south of Awu. The volcano rises more than 400 m from the sea floor and almost reaches the surface, forming a shallow shoal at 5 m depth. Banua Wuhu, during some of its eruptions, has created temporary islands, which were eroded subsequently by wave action. Adjacent Mahengetang island belongs to the same volcanic edifice. Separate vents are found to the northeast (Kahakitang) and north (Kalama) of Banua Wuhu. -> Voir la description complète
Baransky volcano (Sashiusu-dake in Japanese) is a stratovolcano in the center of Iturup Island, southern Kuriles. Only one historical eruption occurred in 1951 and consisted of weak explosions in the summit crater.
Strong fumarolic activity is in the summit and several flank craters. A geothermal field is found on the SW flank and contains hot springs and geysers. During a geothermal exploration in 1992 in this field, a small hydrothermal explosion took place inside an exploratory well and the exploration was abandoned. -> Voir la description complète
Barcena volcano forms the southern part and most significant feature of Isla San Benedicto, the 3rd largest and north-easternmost of the 4 Islas Revillagigedo islands about 350 km south of Cabo San Lucas, Baja California.
The volcano formed by eruptions during 1952-53 and consists in a 700 m wide and 330 m high tuff cone with a circular crater and a spectacular lava delta on the east side formed by a trachytic lava flow that breached the crater and entered the sea. The eruption was the first historic eruption witnessed in the eastern Pacific Ocean. -> Voir la description complète
Barú volcano (also called Volcán de Chiriqui) is an active volcano 35 km east of the border to Costa Rica in the Talamanca Range of western in Panama. The complex, mainly andesitic stratovolcano is Panama´s highest peak.
A large explosive eruption occurred at about 700 AD destroyed settlements around the volcano. Excavations at the Cerro Punta archaeological site NW of the volcano have brought back to life their ruins.
The only historical eruption of Barú was an explosive eruption reported from the mid 16th century, but radiocarbon-dated tephra samples suggest that there was some activity less than 500 years ago.
Volcán Barú is the youngest major volcano in Panamá and there are geothermal exploration projects under way. -> Voir la description complète
Bas Dong Nai volcano (also known as the Xuan Loc Plateau) is a volcanic field in SE Vietnam, east of Ho Chi Minh city (Saigon). It could be less than 10,000 years old and is the southernmost volcanic area in mainland Vietnam. Suzanna Mount is a well-preserved 180 m high basaltic cone of prehistoric age.
Le plus commun des types de roche volcanique, avec une composition chimique comprenant un taux de silice relativement faible et généralement produit en masse par les éruptions des Volcans boucliers. -> Voir la description complète
Batur is the most active volcano on the popular tourist island of Bali and one of Inondesia's more active ones. During the past centuries, Batur has had a number of small eruptions every few years. Thanks to the scenic beauty of the caldera with its lake and the cone of Batur, it is one of Bali's most popular destinations. -> Voir la description complète
Bayonnaise Rocks volcano (ベヨネース列岩 Beyonēsu-retsugan) is an active submarine volcano in the Izu Islands ca. 400 km south of Tokyo. The volcano has a large 8-9 km wide caldera whose highest point forms a few rocks rising just above sea level. The volcano is known for its submarine eruptions which sometimes produce temporary islands.
Most of its frequent eruptions have occurred at Myojin-sho, a large young lava dome on the NE rim of the caldera. In 1952, an explosive eruption at Myojin-sho destroyed a Japanese research vessel, killing all 31 people on board.
There is only sparse vegetation on the Bayonnaise Rocks, but the islands are an important resting place for migratory birds. Located in the Kuroshio Current, the waters around have abundant sea life and are popular with sports fishermen. -> Voir la description complète
Bazman volcano is a stratovolcano in SE Iran, 180 km SSW of the city of Zahedan. The volcano has a well-preserved 500 m wide summit crater with minor fumaroles, which suggest it could be still active. -> Voir la description complète
The compound Belerang-Beriti volcano rises above the Semalako Plain in SW Sumatra, forming a NW-SE-trending massif that contains a 1.2-km-wide crater breached to the NE. -> Voir la description complète
Belknap Crater volcano is located near McKenzie Pass, north of the Three Sisters volcanoes in Central Oregon. It is the center and source of one of the largest number of geologically recent eruptions in the Cascade Range. It was very active between about 3000 and 1500 years ago.
The McKenzie highway 242 crosses the barren lava fields on the SE flank and offers with spectacular views toward Mt. Jefferson and the Three Sisters volcanoes. -> Voir la description complète
La bentonite est une argile généralement impurs aluminium absorbant phyllosilicates composé principalement de montmorillonite. -> Voir la description complète
Berutarube is an andesitic-to-dacitic stratovolcano on the SW tip of Iturup Island (Kuriles). It has gentle slopes which are deeply eroded by glacial valleys. Funaroles and sufur deposits occur in the inner walls of the central crater. -> Voir la description complète
Bezymianny ("unnamed") was considered extinct until it erupted violently in 1955-56, after a slumber of probably 1000 years. It is one of the most active volcanoes in Kamchatka. The eruption followed a massive flank failure (similar to Mt. St. Helens eruption in 1980) which removed a 0.5 sq km sector of the volcano. -> Voir la description complète
Bibinoi volcano (Bukit Bibinoi, Bibinoi Hill) on the SE tip of Bacan Island is the largest and SE most of 3 volcanoes on the island, located off the south coast of Halmahera Island, Indonesia. Two other, smaller volcanic centres are Songsu and Lansa.
Binibnoi is separated from the Amasing volcanic complex to the NW by the metamorphic (i.e. non volcanic) Sibela Mountain range.
Biliran volcano comprises the whole 20x35 km Island of Biliran which is formed by a group of lava domes. It is located across the narrow Biliran Strait from the northern tip of Leyte Island.
Biliran volcano is at the northern end of a 170 km long volcanic chain extending SSE to Panaon Island.
The only known historic activity took place on 26 September 1939 and consisted of a phreatic explosion accompanied possibly by a debris avalanche. Ash fell in Caibiran town 12 km to the E.
There are many fumarole fields, hot springs, mud pools and thermal areas on Biliran.
Billy Mitchell volcano is a small shield volcano, which is composed mainly of loose deposits from explosive eruptions (pyroclastic shield). The volcano is located immediately NE of Bagana volcano in central Bougainville Island.
Billy Mitchell's typical eruption style are explosive eruptions from the central vent, and the volcano is remarkable for having produced some of the largest explosive eruptions in Papua New Guinea in the past 10,000 years. -> Voir la description complète
Binuluan volcano belongs to the Ambalatungan volcanic group and is located in the Kalinga Province, Luzon Island, Philippines.
A possible steam eruption of Binuluan volcano in 1952 killed 12 people by a sulphur rich debris flow.
Bir Borhut volcano is an active, but almost unknown volcano in eastern Yemen near the Gulf of Aden. Old documents tell of volcanic activity in the 10th century, and it was reported to have still been "smoking" in 1813. -> Voir la description complète
The Black Rock Desert volcanic field of a group of small volcanic fields in south central Utah, at the eastern margin of the Great Basin. It is the youngest volcanic area in Utah and contains both Utah's youngest known rhyolite dome (0.4 million years old) and its youngest lava flows, the roughly 660-year-old Ice Springs lava flows, located at Ice Springs, 15 km west of Meadow. These lava flows extend 4 km north and west from Black Rock Station. -> Voir la description complète
Blocs volcaniques sont des fragments de roche solidifiée plus de 64 mm de diamètre. Blocs communément sont éjectés durant les éruptions explosives et comprennent des pièces plus âgés de l'édifice du volcan, p. ex. les flux de pièces de conduites, de dômes de lave ou de lave âgé. -> Voir la description complète
Blue Lake is a series of at least 3 overlapping explosion craters (maars), located along a NE trend slightly east of the crest of the Cascade Range. The best-known crater, Blue Lake Crater contains a blue lake (800m x 300m) and is probably the youngest. It formed by an eruption about 1300 years ago. It lies immediately west of the popular recreation area of Suttle Lake. -> Voir la description complète
BLUP Blup volcan forme le petit, boisé de 3,5 km large Blup Blup Island env. 30 km au large du Cap Girgir sur le littoral de Sepik oriental de Nouvelle-Guinée. La ville la plus proche est Karau. Le volcan andésitique dacitique contient un cratère sommet de 800 m de diamètre rempli par l'épaisse forêt tropicale et éventuellement un dôme de lave sur une crête s'étendant à l'Ouest. Les coulées de lave avec des fronts de débit bien développées sont visibles sur ses flancs. Un cône petit flanc est situé sur la côte sud-ouest. La plupart des activités ont eu lieu depuis le cratère du sommet, mais l'âge de la dernière éruption est inconnue, mais il y a probablement moins de 10 000 ans.
Bocca Nuova (= la nouvelle bouche) est le cratère sommet plus à l'ouest du volcan Etna. Il s'est formé en 1968 comme un cratère de petite fosse sur le cône de cratère du sommet. Il augmente progressivement en taille et en profondeur au cours des années. La dernière éruption majeure de la Bocca Nuova s'est produite en 1999, quand la lave rempli le cratère et overspilled sur le flanc ouest du Mont Etna.
Bogatyr Ridge is a stratovolcano on SW Iturup Island, Kuriles, Russia. It consists of a chain of craters and cones and the larger Stokap volcano, astratovolcano aligned NE-SW.
The andesitic Stokap volcano has 8-10 cones and explosion craters. The largest of these contains a lake. Lava flows from Stokap volcano have reached the sea on both sides, the Pacific Ocean and the Sea of Okhotsk. There are no known historic eruptions, but the volcano has been active during the Holocene.
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Source: GVP Bogatyr Ridge information
Boisa volcano forms a tiny island offshore from Bogia on the Madang coast. There are no known historical eruptions from Boisa volcano.
It is located only 10 km NW of Manam volcano, and it is a possible that Boisa belongs to the same volcanic edifice and is supplied by the same magma chamber,- in other words, really is a side vent of Manam rather than a separate volcano. -> Voir la description complète
Bola volcano (or Mt. Wangore) is a symmetrical steep stratovolcano that forms the highest point on the Willaumez Peninsula in New Britain.
There are no known recent eruptions, but the fresh morphology of the summit crater suggests that the last activity was only a few hundred years ago. -> Voir la description complète
Bombalai volcano in north east Borneo is the only volcano considered still possibly active of Malaysia, although its last eruptions might have been thousands of years ago.
It is located close to the border with Indonesia, in the Malaysian province of Sabah, across Cowie Harbor from the the Indonesian province of Kalimantan.
Bombalai cinder cone is part of a large volcanic field on the Semporna Peninsula in the NE of Borneo. Bombalai has a 300 m wide crater breached to the south and 2 young lava flows extending almost to the coast.
Fragments éjectés de magma « frais » supérieur à 64 mm de diamètre, souvent ayant une forme aérodynamique acquise lors de leurs parcours aérien. -> Voir la description complète
Bombe volcanique avec une surface craquelée similaire à celle de la croûte de pain, causée par la lente expansion des bulles de gaz volcanique contenue dans la lave, à l'intérieur durant le refroidissement. -> Voir la description complète
Mount Bosavi is an extinct volcano in a remote part of the Highlands of Papua New Guinea. Mount Bosavi is actually the collapsed cone of an extinct volcano on the Great Papuan Plateau, part of the Kikori River basin. Its caldera is approximately 4 km wide and 1 km deep. Bosavi is home to a number of unique species.
The volcano is partly located in the Sulamesi Wildlife Management Area, which was declared in 2006. The mountain with its deep crater are so inaccessible that even the few local people in the Kasua tribe who live in nearby villages rarely visit the area. -> Voir la description complète
Bratan is a large caldera of unknown age in north-central Bali, Indonesia. It measures 11 x 6 km and contains 3 lakes - Danau Tamblimgam, Danau Buyan, and Danau Bratan. The area is know of its scenic beauty and hot springs. -> Voir la description complète
The Bridge River Cones are a field of small basaltic cinder cones in SW British Columbia, Canda. The youngest activity from this volcanic area could be less than 1500 years old. -> Voir la description complète
Broken Top in the Three Sisters Wilderness, Oregon, is, as the name suggests, the heavily eroded top of a probably extinct stratovolcano. -> Voir la description complète
Le volcan Mont Bromo en Java est est le cône actif à l'intérieur de la caldeira Tengger géant, une destination d'endroits plus pittoresque d'Indonésie dans l'est de Java, célèbre pour ses vues de lever de soleil magnifique et le panorama sur la caldeira avec Semeru volcan en arrière-plan. -> Voir la description complète
Brushy Butte est un petit volcan bouclier peu étudié immédiatement à l'est du cratère maar à colombages, et au sud-sud-est des Highlands lac Medicine en Californie du Nord, Etats-Unis.
Bukit Lumut Balai is a heavily eroded volcano consisting of three eruption centers, two on Bukit Lumut and one on the NE side of Bukit Balai, 5 km to the east. Large lava flows occur on the north side of Bukit Balai. -> Voir la description complète
Bulusan, l'un des volcans plus actifs dans les Philippines, est le volcan plus au sud de Luçon. Elle se trouve à l'extrémité sud-est de l'arc volcanique de Bicol, occupant la péninsule du même nom qui forme l'extrémité SE allongée de l'île de Luçon. -> Voir la description complète
Buru volcano is a partly preserved cinder cone which rises 250 m above the surrounding swamps. it is located SW of Pago and SE of Oto.
The volcano is named after the Buru river on the south side of the volcano. To the north is a swampy depression called the Buru caldera. -> Voir la description complète
Mount Cabalían volcano is located on the SE tip of Leyte Island, Philippines. It is is an andesitic stratovolcano with steep radial erosion valleys and ridges that are moderately to thickly vegetated.
It contains a summit crater filled by a lake. The crater rim is irregular and forms 2 peaks on the S side. A recent pyroclastic flow deposit was radiocarbon dated to be only about 150 years old. Hot springs with temperatures of up to 64 deg C are found on the east and west flanks of Cabalían.
Caburgua-Huelemolle volcano is a group of 4 cinder basaltic cones in central Chile: Volcanoes de Caburgua and Volcán Huelemolle, Volcán Redondo and Volcán Pichares. -> Voir la description complète
Cagua is an active stratovolcano at the NE tip of northern Luzon Island, Philippines. It has a circular summit crater of 1.5 km diameter, with steep, 60-m-high walls, and is locally known as the "Fire Mountain". The volcano might have erupted in 1907, when strong fumarole activity was noted. A phreatic explosion in 1860 may have generated pyroclastic flows.
At present, there are thermal areas near the summit crater and on the NW and NNE flanks. -> Voir la description complète
Caichinque volcano is a relatively small volcanic complex in northern Chile. It devides Salar Capur from Salar Talar. There are more than 6 vents that have erupted andesitic-to-dacitic lava flows. The youngest of these are found on the NE and SE sides of the Cainque stratovolcano, including one that traveled 6 km to the east and formed 2 lobes into the Salar Talar. The age of the flows is unknown and estimated between pre-historical times and Pleistocene.
Calabozos volcano in central Chile is a complex containing a large 26x14 km wide caldera, Cerro del Medio volcano at the south of the caldera, and 4 cinder cones of Descabezado Chico on the western caldera rim.
The caldera was formed by repeated massive (super-volcano) eruptions 800,000, 300,000 and 150,000 years ago, each of which deposited hundreds of cubic kilometer of ash flows. -> Voir la description complète
Volcan Calbuco, avec son voisin, Osorno, est l'un des volcans les plus actifs du Chili. Il est situé à 11 km au sud du lac Llanquihuand NE 30 km de la ville de Puerto Mont, dans le district du Lac dans le sud du Chili. Volcan Calbuco se compose principalement de blocs de coulées de lave aa et couches de tephra, et son sommet est tronqué par un cratère de 400-500 m au sommet de large. Les avalanches de débris de Calbuco ont atteint le lac Llanquihue. Une des plus grandes éruptions historiques dans le sud du Chili a eu lieu du Calbuco en 1893-1894. Elle s'est terminée par la formation d'un dôme de lave dans le cratère sommital. Plus tard, des éruptions ont agrandi le complexe de lave-dôme. -> Voir la description complète
Une caldeira est en général un grand cratère, de plusieurs kilomètres (diamètre supérieur à 1Km) d’étendue, formé par l'effondrement du toit d'une Chambre magmatique vidangées par de grandes éruptions explosives. -> Voir la description complète
The large 30x45 km wide Caldera del Atuel is located in western Argentina just east of the Argentina-Chile border and 18 km SSW of the rim of Diamante caldera. -> Voir la description complète
Ice-capped Callaqui volcano is an elongated basaltic-andesite stratovolcano in central Chile Volcano. It has had a few small explosive eruptions in historic time, and it is known for its intense fumarolic activity. -> Voir la description complète
Camiguin de Babuyanes volcano is a small stratovolcano on the SW tip of the 22 km long Camiguin Island in the Babuyan archipelago, 35 km off the north tip of Luzon Island.
Note: A volcanic island called Camiguin is located off the north coast of Mindanao Island. -> Voir la description complète
Le Champs Phlégréens ("champs brûlants") ou Champs Phlégréens est un grand, 13 km de large caldeira imbriquée situé sous la périphérie ouest de la citiy de Naples et sous le golfe de Pozzuoli. Il contient de nombreux centres volcaniques (cônes de scories, anneaux de tuf, des caldeiras) qui ont été actifs au cours des dernières années 30-40,000. Le champ volcanique a été le site de certaines éruptions extrêmement violentes dans le passé, même si les quelques qui ont eu lieu durant les périodes historiques sont de petits événements. Aujourd'hui, il n'ya aucun signe de danger imminent réveil de l'activité, même si il ya des signes abondants de la présence d'une chambre magmatique toujours actif dans les formes de solfatares, les sources chaudes, les émissions de gaz, etc En particulier, le Campi Flegrei est tristement célèbre pour ses fréquents épisodes de déformation du sol majeur sous la forme de la grande place et downlift du sol (bradisism, voir ci-dessous). -> Voir la description complète
Campi Flegrei del Mar di Sicilia (Champs Phlégréens de la mer en Sicile) est composé d'un groupe de volcans sous-marins SW de la Sicile. -> Voir la description complète
Carrán-Los Venados volcano in central Chile is a group of about 50 basaltic to basaltic-andesite scoria cones, maars, and a small stratovolcano. The volcanic group is broadly aligned on a 17 km long ENE-WSW trending line ESE of Lago Ranco.
The volcano erupted 3 times in the 20th century, forming the Mirador scoria cone and two maars, Riñinahue and Carrán. These historical eruptions were at the intersection of the Liquine-Ofqui fault zone with the ENE-WSW alignment of volcanic centers.
The massive Carrizozo lava flow is one of Earth's longest known lava flows that were erupted in the past 10,000 years. The basalt flow is 50 m thick, 75 km long, 1-5 km wide and was mainly fed by lava tubes. -> Voir la description complète
Le Castillo de Santa Bárbara, également appelé Castillo de Guanapay, est situé sur les Canaries de l'île de Lanzarote dans la municipalité et de la townTeguise. -> Voir la description complète
Volcán Cay is a probably still active stratovolcano in southern Chile, 15 km NE of Maca volcano and NW of the town of Puerto Aisén. Like Maca and Hudson volcanoes, Cay is one of the large composite central volcanoes in the South Andean Volcanic Zone.
Cay volcano is basaltic and dacitic in composition. It contains an explosion crater open to the east, and about a half dozen explosion craters and pyroclastic cones along a fissure trending SW of the summit.
Another 10 basaltic cinder cones are located along a second parallel fissure 5 km to the SE, which is part of the major regional Liquiñe-Ofqui fault zone. -> Voir la description complète
Nevado Cayambe is a massive volcanic complex in northern Ecuador, 60 km NE of the city of Quito and only 15 km E of the 20,000 inhabitants city of Cayambe. The equator passes through its southern flank. The andesitic-dacitic volcano is located on the isolated western edge of the Cordillera Real in the Ecuadorian Andes, east of the Inter-Andean Valley.
The volcano is capped by extensive glaciers, which descend to 4200 m on the eastern Amazonian side. It contains 2 summit lava domes located about 1.5 km apart, the western of which is the highest. Several other lava domes are located on the upper flanks and have been the source of pyroclastic flows down the lower flanks of the volcano.
La Virgen is a prominent young cinder cone on the lower eastern flank, which erupted thick andesitic lava flows that reached 10 km to the east.
There is only one confirmed historic eruption, during 1785-86, but recent studies have shown that the volcano has produced frequent explosive eruptions during the past 4000 years. -> Voir la description complète
Cayutué-La Viguería volcano is a volcanic field in southern Chile, south of Lake Todos los Santos. The field contains about 20 young basaltic maars and cinder cones, aligned NNE-SSW on the Liquiñe-Ofqui fault zone, a major regional N-S feature. -> Voir la description complète
Les cendres volcaniques sont des produits constitués de fragments (inférieur à 2 mm) de roche effusive (éléments pyroclastiques) projetés par les volcans à la suite d’une éruption volcanique. -> Voir la description complète
Cereme (or Ciremai) volcano close to the north coast of Java is a symmetric stratovolcano and among the most beautiful and largest of Java's active volcanoes. It contains a deep twin crater elongated in E-W direction.
Cereme's historic eruptions were infrequent, and consited mainly in mild explosive activity and mud flows from the summit crater. -> Voir la description complète
Cerro Auquihuato volcano is a young, 380 m high cinder cone in southern Perú, located about 30 km NE of Sara Sara volcano and east of Río Ocona. The location on a high plateau is very remote and far from road access and little is known about the volcano.
Satellite images show a young lava flow with prominent channel structures. The flow extends 9 km south of the volcano.
Cerro Azul stratovolcano in Central Chile is located at the southern end of the Descabezado Grande-Cerro Azul group of volcanoes. Its steep summit cone contains a 500 m wide crater.
Cerro Azul is the site of one of the largest explosive eruptions in the 20th centuries. It erupted from the Quizapu vent on April 10-11 1932, producing a Plinian eruption column of 27-30 km (ca. 95,000 ft) height. The eruption formed a 600-700 m wide 150-m-deep crater and blanketed the region with ash.
Quizapu is one of Azul's major vents and located on the northern flank of Cerro Azul. It formed in 1846 during the first historical eruption at Cerro Azul, which was accompanied by voluminous dacitic lava flows that traveled both east into the Estero Barroso valley and west into the Río Blanquillo valley. Quizapu was also the site of the massive 1932 eruption.
La Resoloma Craters are 3 basaltic-andesite cinder cones on the W flank. They erupted Los Hornitos are cinder cones on the lower SW flank.
Note: there are 2 volcanoes with similar names: Volcan Azul in Nicaragua, and Cerro Azul in the Galapagos Islands.
Cerro Bayo is a complex volcano on the northern Chile/Argentina border. The volcano contains a young cone exactly on the border with a 400 m wide crater which has erupted two 4 km long lava flows to the north and NW.
The youngest known product of the volcano are 2 dacitic lava flows that traveled to the north and were erupted from the summit crater located on the Chilean side.
Cerro Bravo volcano is located 145 km NW of Bogota, Colombia, north of Nevado del Ruiz volcano.
It consists of dominantly dacitic lava-domes. In the past 4000 years, the volcano has had at least 7 violent (plinian) explosive eruptions, producing pumice layers and pyroclastic flows.
Cerro Cinotepeque volcano is a group of 4 young cinder cones on both sides of Río Lempa, about 40 km north of San Salvador city.
Cerro Cinotepeque (also spelled Cinotepec) lies south of the river, 2 other cones, Cerro Santiago and Cerro Mosquito, immediately north of the river. A fourth cone is located along the Río Gualchayo about 10 km farther north. -> Voir la description complète
Cerro del Azufre ("sulphur peak") volcano is a large andesitic stratovolcano in northern Chile 20 km from the border with Bolivia. It is the largest and youngest volcanic center of a 50-km-long, NW-SE-trending chain of volcanoes south of Salar de Ascotán.
The volcano has 2 summits, the northern peak forming the summit and the lower southern peak (5700 m) belonging to an earlier stratovolcano, which extends towards the extinct Cerro Aguilucho volcano.
It is uncertain whether the volcano has erupted in the past 10,000 years. There are a number of fresh-looking lava domes and craters, but in this region erosion and weathering are so inefficient that such craters can look young, but are actually hundreds of thousands of years old.
Note: there is a volcano with a similar name - "Cordon del Azufre" in northern Chile. -> Voir la description complète
Cerro el Ciguatepe volcano is located in the Nicaraguan interior highlands, east of the Nicaraguan depression and one of several Quarternary volcanoes in this area.
It contains a well-reserved 1.5 km wide summit crater, which contains a blocky lava dome and a young lava flow that has traveled from a breach in the SW side of the crater to the base of the cone. -> Voir la description complète
Cerro el Cóndor is a large stratovolcano located in NW Argentina. it is one of the few larger volcanoes which are completely inside Argentina.
The volcano was built on top of a 2.5-km-wide caldera and contains several ash cones and craters which are aligned on a NNW-SSE trend. There are several lava flows extending up to 10 km east towards the base of Peinado volcano.
There are many satellitic vents, including one on the east flank with a fresh-looking lava flow that traveled 8 km to the east. The young morphology and the pristine summit crater suggest a young, Holocene age for Cerro del Cóndor.
Cerro Negro, Central America's youngest volcano was born in April 1850 and is one of the region's most active volcanoes. It has been producing frequent strombolian eruptions, occasional lava fountains and lava flows, and powerful explosive eruptions every few decades.
Cerro Negro lies in a sparsely populated area and its eruptions have not caused significant damage nearby, but ash fall from its sometimes strong explosions have damaged farmland and houses in the populated areas of the Nicaraguan depression. -> Voir la description complète
Cerro Negro de Mayasquer is an andesitic to dacitic stratovolcano on the Colombia-Ecuador border. It contains a caldera open to the west.
An historical eruption reported in 1936 is probably false and may have been from Reventador volcano.
Solfataras are found on the shore of a small crater lake. -> Voir la description complète
Cerro Nicholson volcano is a small isolated andesitic scoria cone in Southern Peru. It is located on a plain WSW of Chachani volcano and WNW of El Misti volcano.
The crater of the Cerro Nicholson cone has a youthful appearance and is full of fresh-looking volcanic bombs, suggesting a relatively young age. It is similar to the Andahua scoria cones farther to the north. -> Voir la description complète
Cerro Overo is an isolated basaltic maar in northern Chile, located on the lower NE flank of Chiliques volcano, west of the Salar de Aguas Calientes, and 20 km north of Lascar volcano. The fresh morphology suggests a possible Holocene age. It contains a 600-m-wide and 80-m-deep crater.
Cerro Overo erupted the least silica-rich volcanic rocks (basalts) found in this part of the Central Andes.
Cerro Pantoja is an eroded dominantly basaltic volcano along the Chile-Argentina border. The only known activity within the past 10,000 years is a cinder cone on the Argentinian side.
Cerro Pantoja lies SSW of Lake Constancia located immediately west of the Argentinian border. The volcano has a dramatic steep-sided summit pinnacle.
Cerro Prieto volcano is a small dacitic lava dome in the Cerro Prieto geothermal field at the northern end of the Gulf of California, 33 km south of Mexicali at the Mexican border or 175 km SE of San Diego. -> Voir la description complète
Cerro Singüil (also known as El Cerron) is a large scoria cone SE of Volcán Chingo in the interior valley of El Salvador near the Guatemalan border. The volcano has a well-preserved summit crater and belongs to a young volcanic field of cinder cones and explosion craters. -> Voir la description complète
Cerros de Tocorpuri is a stratovolcano in northern Chile on the border with Bolivia. It contains a 1.2 km wide summit crater and a lava dome, Cerro La Torta, located on its western side.
Chacana is an active stratovolcano 30 km SE of Quito, Ecuador. The volcano is one of the largest rhyolitic centers of the northern Andes and contains a large 32 km long and 24 km wide eroded caldera.
Historic activity consisted of lava flows in the 18th century. -> Voir la description complète
Chachimbiro volcano is a large volcanic complex 25 km NW of the city of Ibarra in northern Ecuador.
There are no historic eruptions. The most recent activity took place from the Pitzantzi lava dome and produced a wide-spread ash deposit that extends NW. -> Voir la description complète
Le Champs Phlégréens ("champs brûlants") ou Champs Phlégréens est un grand, 13 km de large caldeira imbriquée situé sous la périphérie ouest de la citiy de Naples et sous le golfe de Pozzuoli. Il contient de nombreux centres volcaniques (cônes de scories, anneaux de tuf, des caldeiras) qui ont été actifs au cours des dernières années 30-40,000. Le champ volcanique a été le site de certaines éruptions extrêmement violentes dans le passé, même si les quelques qui ont eu lieu durant les périodes historiques sont de petits événements. Aujourd'hui, il n'ya aucun signe de danger imminent réveil de l'activité, même si il ya des signes abondants de la présence d'une chambre magmatique toujours actif dans les formes de solfatares, les sources chaudes, les émissions de gaz, etc En particulier, le Campi Flegrei est tristement célèbre pour ses fréquents épisodes de déformation du sol majeur sous la forme de la grande place et downlift du sol (bradisism, voir ci-dessous). -> Voir la description complète
The Chao lava dome in northern Chile near Calama town is one of the largest known lava domes in the world. It measures 14.5 km in length and 350-400 m in height.
Chikurachki stratovolcano forms highest peak on Paramushir Island in the northern Kurile island arc just south of Kamchatka Peninsula. It is one of the region's most active volcanoes.
The volcano itself is a relatively small cone, compared to other volcanoes of the Kurile Islands, but it is built on top of the high-lying remnants of an older and now extinct predecessor volcano. The dominantlyc basaltic one has steep slopes with little erosion and a shallow summit crater of approximately 450 m in diameter. The upper part of Chikurachki's cone is red, caused by oxidized basaltic-to-andesitic scoria deposits.
Eruptions of Chikurachki volcano:
There are 2 principal types of eruptions from Chikurachki: 1) frequent strombolian (mildly explosive) eruptions, such as in 1958, 1961, 1964, 1973, 2002, 2003, and 2) (sub-)plinian (extremely violent and dangerous) explosive eruptions such as in 1853 and 1986.
The strombolian-type eruptions usually last between several days to few weeks, and produce ejections of incandescent lava reaching 100-500 m height above the crater, but can occasionally produce ash plumes of up to 3 km height.
Many eruptions from Chikurachki are accompanied by lava flows. Some have reached the sea and form capes on the NW coast, and there are young lava flows on the upper eastern flank.
Basaltic plinian eruptions are a globally rare phenomenon, but common at Chikurachki volcano, and it is estimated that they have occurred every 100–200 years. Such eruptions - similar to the Icelandic Grimsvötn's eruption in June 2011 - are capable of producing tall ash plumes reaching 10-20 km and pose a significant hazard to aviation in an area densely populated by flight routes from N-America to Asia. -> Voir la description complète
Volcán Chiliques is a stratovolcano in northern Chile immediately south of Laguna Lejía. The volcano consists of a symmetrical cone rising 1000 m from the surrounding terrain and contains a 500 m wide crater. Several young lava flows are seen on its flanks and some might be younger than 10,000 years. The largest flow extends 5 km to the NW, but older flows have reached 10 km distance on the north flank towards Laguna Lejía.
In April 2002, first signs of a possible reawakening of the volcano were detected as new hot spots inside the crater.
Chimborazo volcano is Ecuador's highest active volcano and the highest in the Northern Andean Volcanic Zone. The massive, ice-capped stratovolcano lies at the southwest end of the main Ecuadorian volcanic arc, the so-called "Avenida de los Volcanes" ("Avenue of Volcanoes") and is located ca. 150 km SSW of Quito and 28 km NW of the town of Riobamba.
Chimborazo had been thought to be extinct, but new studies have shown that it still is an active volcano. Although there are no historical eruptions,
Chimborazo erupted at least 7 times during the past 10,000 years. These eruptions produced pyroclastic surges that reached down to 3800 m elevation. The average time interval between single eruptions is about 1000 years and the last eruption occurred about 1400 years ago, which means that statistically, it is due for another one.
Due to its great height and its geologic history of explosive eruptions, and closeness to populated areas in Ambato and Riobamba basins, it should be considered a dangerous volcano. -> Voir la description complète
Chinameca volcano (also known as El Pacayal) is a small stratovolcano next to the larger San Miguel volcano in eastern El Salvador. It is connected to San Miguel across a low saddle to the SE.
Chinameca is truncated by a 2-km-wide, steep-sided caldera, Laguna Seca el Pacayal. Coffee plantations cover most of the flanks of the volcano. -> Voir la description complète
Chirinkotan volcano is a large, mostly submerged stratovolcano forming a small largely unvegetated and 3 km wide island in the Kuril Island chain. It is located at the far end of an E-W-trending volcanic chain that extends nearly 50 km west of the central part of the main Kuril Islands arc.
The volcano is one of the Kurile's most active. Historical eruptions included lava flows on the SE flank during an eruption in the 1880s and were observed by the English fur trader Captain Snow. -> Voir la description complète
Chirip volcano is a twin volcano forming the Chirip peninsula which streches NW into the Okhotsk Sea from central Iturup Island, Kurile Island, 230 km north of Hokkaido, Japan.
The 2 stratovolcanoes are Chirip volcano in the N and Bogdan Khmelnitskii to the S. They overly an older volcanic edifice. The lavas erupted from both volcanoes are dominantly basaltic, which is unusual for subduction zone volcanoes.
Only 2 historic eruptions are known. The last eruption in 1860 occurred from a vent SE of the summit of Bogdan Khmelnitskii volcano. -> Voir la description complète
Chirpoi volcano forms a small island in the central Kurile Islands, Russia. It has a 8-9 km wide partially submerged caldera with several volcanic centers inside the caldera, including active Snow and Cerny volcanoes. The southern caldera rim emerges again on nearby Brat Chirpoey Island 2.5 km SE of Chirpoi. -> Voir la description complète
Chirpoi volcano forms a small island in the central Kurile Islands, Russia. It has a 8-9 km wide partially submerged caldera with several volcanic centers inside the caldera, including active Snow and Cerny volcanoes. The southern caldera rim emerges again on nearby Brat Chirpoey Island 2.5 km SE of Chirpoi. -> Voir la description complète
Chokai volcano (鳥海山 Chōkai-san) is the largest volcano of NE Honshu.
It is a massive stratovolcano with a broad conical profile which is why it is called locally Akita-Fuji or Dewa-Fuji. Its height measures from the WNW elongated 15x20 km base about 2000 m.
The volcano is located about 60 km west behind the main volcanic front of the Honshu arc and towers above the Japan Sea.
Chokai consists of 2 overlapping volcanoes, the western and older volcano Nishi-Chokai and the younger eastern volcano Higashi-Chokai, forming the 2 distinct peaks. Historic records of eruptions, mostly phreatic explosions, go back to the 6th century AD. -> Voir la description complète
Cinnamon Butte is one of a group of 3 young cinder cones long a WNW-ESE line immediately west of the Cascade crest and NE of Diamond Lake in Oregon, USA. The other two cones are Thirsty Point and Kelsay Point. -> Voir la description complète
Clear Lake champ volcanique se situe dans le nord de Coast Ranges, en Californie, ca. 135 km au nord de San Francisco. Le champ volcanique constitué de complexes dôme de lave, des cônes de scories et des maars du basaltiques à rhyolitiques-composition. Mont Konocti, un dôme de lave dacitique sur la rive sud du lac Clear, est le plus grand édifice volcanique. La région a une intense activité gethermal, causée par une grande chambre magmatique est encore chaud silicique environ 14 km de large et 7 km sous la surface. Il fournit la source de chaleur pour les geysers, le plus grand du monde champ géothermique produisant sur le côté sud-ouest du champ volcanique. Ses centrales géothermiques peut générer environ 2000 mégawatts, soit suffisamment pour alimenter deux villes de la taille de San Francisco. La dernière activité volcanique qui s'est passé il ya 10.000 ans et a formé maars et de cônes de cendres le long des rives du lac Clear, le lac d'eau douce naturelle Grandes, en Californie. Volcanisme autour du lac Clear est lié à la complexité du système faille de San Andreas transformer. -> Voir la description complète
The beautifully symmetrical Mount Cleveland stratovolcano forms the western half of the uninhabited Chuginadak Island in the eastern Aleutians, connected to the eastern half of the island by a narrow isthmus. It is one of the regions most active volcanoes, but at present has no seismic network. Monitoring of its activity is largely based on satellite observation. -> Voir la description complète
Coatepeque volcano is a large 7 x 10 km wide caldera 50 km west of San Salvador city. The caldera is elongated in SE-NW direction, with walls rising up to 800 m above the floor in its southwestern part. An up to 120 m deep and 5 km diameter lake occupies the eastern part of the caldera.
Hot springs occur near the lake shores, but there are no certain historical eruptions from Coatepeque. -> Voir la description complète
Cochiquito is part of a small group of young volcanoes lies north of the town of Buta Ranquil, Argentina, near where the Río Grande and Río Barrancas join to form the Río Colorado. -> Voir la description complète
Colachi volcano is a stratovolcano in northern Chile. Th youngest lava flows were erupted probably less than 10,000 years ago and cover an area of 7 sq km area on the saddle between Colachi and the neighboring volcano Acamarachi.
Coleman Seamount volcano is a submarine volcano in the western Solomon Islands discovered in 1985 by the Hawaiian "Moana Wave" research vessel during a November 1985 to January 1986 cruise. -> Voir la description complète
