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Volcanic activity worldwide 24 Aug 2015: Fuego volcano, Reventador, Piton de la Fournaise, Ubinas, S...

Montag Aug 24, 2015 15:51 |

Steaming and glow from Aso's Nakadake main vent
Steaming and glow from Aso's Nakadake main vent
View of Sinabung's summit with the two active lobes (photo:  Lëwå (OEL) @endrolewa / twitter)
View of Sinabung's summit with the two active lobes (photo: Lëwå (OEL) @endrolewa / twitter)
MODIS thermal signal from Sangeang Api (MIROVA)
MODIS thermal signal from Sangeang Api (MIROVA)
Explosion at Reventador volcano this morning
Explosion at Reventador volcano this morning
Ash plume from Cotopaxi last evening
Ash plume from Cotopaxi last evening
Ash emission from Ubinas volcano today
Ash emission from Ubinas volcano today
Lava fountain and lava flow from the new eruption of Piton de la Fournaise today
Lava fountain and lava flow from the new eruption of Piton de la Fournaise today
Aso (Kyushu): Activity has been low during the past days, with only intense steaming and dilute ash emissions from the Nakadake crater. Incandescence continues to be visible from the main vent, suggesting magma remains close to the surface.

Sakurajima (Kyushu, Japan): The likelihood of a feared larger eruption seems to be decreasing as the volcano has slowly been resuming small explosive activity and shots of the crater show the presence of fresh lava.
This could mean that the conduit is not as strongly blocked as feared and could allow the volcano to return to a more regular eruption style, where pressure is released more gradually.
... [read more]

Sinabung (Sumatra, Indonesia): Small pyroclastic flows were observed during the past days, mostly originating from the active eastern lava lobe.
Recent photos of the summit show no major changes during the past weeks, but suggest that lava effusion continues to slowly build up the dome and the two active lobes, which are now prone to potentially larger collapses and associated flows.
A safety radius of 7 km from the volcano is recommended.

Sangeang Api (Indonesia): A thermal hot spot of moderate intensity from the volcano's summit continues to be visible on satellite data, suggesting some weak activity continues there.
A steam plume can be seen rising from the volcano's summit where a small lava dome might be growing.

Fuego (Guatemala): The volcano's activity remains low to moderate.

Reventador (Ecuador): The volcano's activity remains at similar levels as during the past weeks. Lava continues to be extruded from the summit crater, producing frequent small to moderate explosions. No sustained lava flow is currently active:


Cotopaxi (Ecuador): Activity at the volcano remains more or less similar with moderately strong, near continuous ash emissions producing a plume rising approx. 2 km and drifting into westerly directions.
This is the latest press release of the government:
... [read more]

Ubinas (Peru): A series of small explosions occurred today, producing ash plumes that rose up to approx. 700 m above the crater and drifted northeast.

Piton de la Fournaise (La Réunion): A new eruption started at the volcano this evening. Following a brief seismic crisis that triggered an eruption alarm, an eruptive fissure opened south of Dolomieu crater at 18:50 local time.
It is producing impressive lava fountains and a branching lava flow, which can be seen on the webcam of OVPF.
... [read more]

Volcano Activity Summary for 24 Aug 2015:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 24 May 2015)
Aso (Kyushu): steaming, occasional phreatomagmatic or strombolian explosions (updated 24 Aug 2015)
Bagana (Bougainville Island, Papua New Guinea): ash emissions, lava dome growth (updated 5 Jun 2015)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 5 Jul 2015)
Colima (Western Mexico): intermittent explosions from summit crater (updated 21 Aug 2015)
Cotopaxi (Ecuador): vulcanian explosions (updated 16 Aug 2015)
Dukono (Halmahera): thermal anomaly, probably small explosive activity in summit crater (updated 21 Aug 2015)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Ethiopia): active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)
Fuego (Guatemala): intermittent strombolian explosions (updated 24 Aug 2015)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 14 Nov 2014)
Karangetang (Siau Island, Sangihe Islands, Indonesia): viscous lava effusion from summit vent, incandescent avalanches on southern flank (updated 18 Aug 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 21 Aug 2015)
Kilauea (Hawai'i): new lava flow from vents on NE flank of Pu'u 'O'o (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): ash emissions, weak strombolian activity (updated 11 May 2015)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 21 Aug 2015)
Nishino-shima (Volcano Islands, Japan): growing island (updated 8 Aug 2015)
Nyiragongo (DRCongo): active lava lake in summit crater (updated 26 Feb 2014)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): weak strombolian activity in summit crater (updated 18 Aug 2015)
Piton de la Fournaise (La Réunion): new eruption since 24 Aug 2015 (updated 24 Aug 2015)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 18 Aug 2015)
Rabaul (Tavurvur) (New Britain, Papua New Guinea): lava fountains, ash emissions from Tavurvur cone (updated 12 Sep 2014)
Reventador (Ecuador): lava flow on SW flank (updated 17 Aug 2015)
Sakurajima (Kyushu, Japan): seismic swarm, eruption warning (updated 19 Aug 2015)
Sangay (Ecuador): likely strombolian eruptions at summit crater (updated 13 Mar 2015)
Santiaguito (Guatemala): small explosions from the Caliente dome and active lava flow (updated 18 Aug 2015)
Semeru (East Java, Indonesia): growing lava dome, lava flow, strombolian activity (updated 16 Jun 2015)
Shiveluch (Kamchatka): growing lava dome (updated 21 Aug 2015)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 24 Aug 2015)
Soputan (North Sulawesi, Indonesia): active viscous lava flow, explosions, rockfalls, pyroclastic flows (updated 9 Mar 2015)
Stromboli (Eolian Islands, Italy): weak strombolian activity at summit vents (updated 16 Apr 2015)
Suwanose-jima (Ryukyu Islands): strombolian activity (updated 3 Aug 2015)
Telica (Nicaragua): sporadic ash emissions and explosions (updated 28 May 2015)
Tungurahua (Ecuador): volcanic unrest, ash emissions, degassing (updated 5 Jul 2015)
Villarrica (Central Chile): small lava lake in summit crater (updated 12 May 2015)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 14 Aug 2013)

Eruption warning / minor activity:

Asama (Honshu): occasional small explosions since 16 June 2015 (updated 22 Jun 2015)
Augustine (Cook Inlet (SW Alaska))
Barren Island (Indian Ocean): weak thermal hot spot (updated 19 Aug 2015)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bulusan (Luzon Island, Philippines): occasional phreatic explosions (updated 16 Jun 2015)
Chirinkotan (Northern Kuriles): sporadic ash emissions (updated 28 Jul 2015)
Cleveland (Aleutian Islands, Alaska): intermittent explosions (updated 12 Aug 2015)
Copahue (Chile/Argentina): ash venting (updated 4 Dec 2014)
Etna (Sicily, Italy): sporadic weak ash emissions from New SE crater (updated 19 Apr 2014)
Gamalama (Halmahera): new eruption on 18 Dec 2014 (updated 16 Jul 2015)
Heard (Australia, Southern Indian Ocean): possibly lava lake in summit crater (updated 5 Dec 2014)
Kavachi (Solomon Islands): no eruption since 2007 (updated 16 Jun 2014)
Kerinci (Sumatra): seismic unrest, steam emissions (updated 5 Jun 2013)
Kick 'em Jenny (West Indies, Grenada): volcanic unrest, eruption warning (updated 24 Jul 2015)
Krakatau (Sunda Strait, Indonesia): steaming, seismic unrest (updated 31 Mar 2014)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lokon-Empung (North Sulawesi, Indonesia): small explosions, lava flow? (updated 22 May 2015)
Lopevi (Vanuatu): eruption warning (updated 16 Dec 2014)
Mayon (Luzon Island): steaming (updated 18 Dec 2014)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Nevado del Ruiz (Colombia): sporadic ash emissions (updated 8 Aug 2015)
Nyamuragira (DRCongo): active lava lake (updated 29 Nov 2014)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): steaming, elevated seismic activity (updated 22 Dec 2014)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rasshua (Central Kuriles)
Raung (East Java): intra-caldera eruption with lava flow and strombolian activity (updated 18 Aug 2015)
Rincón de la Vieja (Costa Rica): phreatic explosions from crater lake (updated 21 Sep 2014)
Sabancaya (Peru): steaming, elevated seismic activity (updated 8 Aug 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): possible ash emission on 11 April (updated 9 Mar 2015)
San Miguel (El Salvador): degassing, seismic unrest, sporadic ash emissions (updated 28 Jan 2015)
Sangeang Api (Indonesia): steaming, possibly weak lava extrusion at summit (updated 24 Aug 2015)
Shishaldin (United States, Aleutian Islands): mild explosive activity, intermittent more intense phases (updated 3 Apr 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Turrialba (Costa Rica): ash emissions, weak strombolian activity (updated 18 Aug 2015)
Ubinas (Peru): intermittent ash emissions (updated 24 Aug 2015)
Ulawun (New Britain, Papua New Guinea): degassing, ash venting (updated 5 Aug 2013)
Zhupanovsky (Kamchatka, Russia): intermittent ash emissions (updated 22 Jun 2015)

Vorherige Nachrichten
Ash plume from Cotopaxi seen from Quito yesterday (Image: Ministerio Coordinador de Seguridad)
Sonntag, Aug 23, 2015
Cotopaxi (Ecuador): Ash emissions have been increasing and producing plumes that rose 2 km above the summit and drifted west for over 50 km. ... [mehr]
The blocked Showa crater of Sakurajima (image: Asahi Shimbun)
Samstag, Aug 22, 2015
Sakurajima (Kyushu, Japan): (21 Aug) According to Japanese scientists, the scenario of a major eruption at the volcano is becoming more and more likely. The Asahi Shimbun news agency sent a drone to photograph the crater, confirming that a flat dome is currently blocking the conduit. ... [mehr]
Ash emission from Etna's Voragine (photo: Boris Behncke / twitter)
Freitag, Aug 21, 2015
Etna (Sicily, Italy): Etna has been mostly calm during the past months. However, signs of unrest have appeared in the form of dilute ash emissions from the central crater (Voragine). ... [mehr]
Inferometry map of Sakurajima showing large deformation (inflation) of the summit area
Mittwoch, Aug 19, 2015
Sakurajima (Kyushu, Japan): The most recent radar measurements done by ALOS-2 satellite of the Japan Aerospace Exploration Agency (JAXA) show that the summit of the volcano has inflated by the enormous amount of approx. 16 cm during the interval 4 Jan - 17 August this year. ... [mehr]
Thermal signal from Karangetang volcano (MIROVA)
Dienstag, Aug 18, 2015
Karymsky (Kamchatka): The volcano had an explosion this morning that produced an ash plume that rose to 15,000 ft and drifted SE. ... [mehr]

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