http://www.actualites-volcans.com/ Actualités et nouvelles des volcans actifs du monde par VolcanoDiscovery fr VolcanoDiscovery http://static.volcanodiscovery.com/logo.png http://www.actualites-volcans.com/ Actualités et nouvelles des volcans actifs du monde par VolcanoDiscovery http://www.volcanodiscovery.com/ Thu, 24 May 2012 11:40:35 +0200 http://www.volcanodiscovery.com/voir_news/9105/Summary-of-world-wide-volcanic-activity-16-22-May-2012.html The past week was dominated by the paroxysm at Fuego volcano on 20 May and ongoing strong explosive activity at Shiveluch in Kamchatka. The new Smithsonian / USGS Weekly Volcanic Activity Report was published today and is summarized as follows: -- new activity --- Fuego (Guatemala): paroxysm on 20 May (lava fountains, lava flows and pyroclastic flows) Marapi (West Sumatra, Indonesia):... Thu, 24 May 2012 11:40:35 +0200 http://www.volcanodiscovery.com/sakurajima/news/9065/Sakurajima-volcano-Kyushu-Japan-remains-in-state-of-elevated-activity.html Sakurajima volcano on Kyushu, Japan, remains in a state of elevated activity. During the past week, strong vulcanian explosions from the Showa Crater often occurred multiple times per day, and generated tall ash plumes reaching 4 km altitude. A small pyroclastic flow reaching 300 m length occurred during an explosion on 21 May. Tokyo VAAC often reported plumes up to 1.8-3.7 km height during... Thu, 24 May 2012 11:28:04 +0200 http://www.volcanodiscovery.com/fuego/actualites/9005/Fuego-volcano-Guatemala-summary-of-the-eruption-on-19-20-May.html The paroxysmal eruption of Fuego volcano, Guatemala, on 19-20 May is summarized in the following Smithsonian / USGS Weekly Volcanic Activity Report: "On 19 May seismicity at Fuego increased and explosions were heard at 5-10 minute intervals. A 600-m-long lava flow descended the W flank, and a 1-km-long and 20-m-wide lava flow descended the E flank, reaching the base of the volcano. Explosions... Thu, 24 May 2012 10:58:23 +0200 http://www.volcanodiscovery.com/el-hierro/submarine-eruption-2011.html Almost no earthquakes have occurred since the last update, and intervals between the occasional weak quakes are becoming longer. In addition, degassing activity from the submarine vents has decreased and there are no more visible stain or jacuzzi reported from near La Restinga. We therefore decided to put El Hierro back to "green" Wed, 23 May 2012 20:01:36 +0200 http://www.volcanodiscovery.com/santorin/actualites/8974/Santorini-volcano-Greece-new-radar-measurements-show-decreasing-trend-of-uplift-in-2012.html A new study was published about the recent uplift detected on the volcanic island of Nea Kameni in the center of the Santorini caldera. The data were obtained using ESA's Envisat satellite and the measurements show that the northeastern part of Nea Kameni experienced an uplift of about 5 cm in 2011, while other areas of the volcano rose some 3–4 cm. This inflation was associated with the elevated... Wed, 23 May 2012 19:41:18 +0200 http://www.volcanodiscovery.com/krakatau/actualites/8964/Anak-Krakatau-volcano-Indonesia-summit-lava-dome-continues-to-grow.html As a recent visit to Anak Krakatau shows, the summit lava dome inside the crater continues to grow. So far, no significant explosive activity seems to have taken place, but that could change quickly. Wed, 23 May 2012 17:18:04 +0200 http://www.volcanodiscovery.com/fuego/actualites/8932/Fuego-volcano-Guatemala-largest-eruption-in-10-years.html Fuego volcano in Guatemala had a major eruption on Saturday (19 May). The eruption was one of its largest in recent years since the start of near continuous activity in 2002. The eruption was both explosive and effusive. According to news, the eruption began at 2:45 a.m. with large explosions and lava fountains possibly up to 1 km high from the summit crater. Large incandescent bombs were... Sun, 20 May 2012 20:28:40 +0200 http://hawaii.volcanodiscovery.com/hawaii/kilauea/current-activity.html Lava continues to flow on Kīlauea's coast, while its summit and rift zone continue to glow. Generally higher pressure over the past week, with fluctuations, has pushed new lava flows closer to the ocean than any time previously this year, but most are spreading out parallel to the coastline rather than directly to the ocean. Meanwhile, over the past week a new eastern flow branch developed above... Fri, 18 May 2012 22:53:34 +0200 http://www.volcanodiscovery.com/voir_news/8910/Bagana-volcano-Bouganville-Island-Papua-New-Guinea-active-lava-flow.html A new NASA satellite image reveals a fresh lava flow on Bagana volcano's eastern flank. It is unknown when the eruption started, but comparison with older images implies that it must have begun some time between March 2011 and February 2012. Bagana is of the most active volcanoes in Papua New Guinea, but extremely remote and there is no ground-based monitoring, which is why satellites provide... Fri, 18 May 2012 16:31:23 +0200 http://www.volcanodiscovery.com/voir_news/8900/Summary-of-world-wide-volcanic-activity-8-15-May-2012.html The new Smithsonian / USGS Weekly Volcanic Activity Report was published today and is summarized as follows: -- new activity --- Ijen (East Java, Indonesia): decreasing activity, alert lowered to 2 (out of 4) Karangetang (Sangihe Islands, Indonesia): occasional ash eruptions reaching 3-4 km altitude Karthala (Comores Islands): incandescence at summit crater Popocatépetl (Mexico):... Thu, 17 May 2012 18:17:41 +0200 http://www.volcanodiscovery.com/sirung/news/8830/Sirung-volcano-Pantar-island-new-phreatic-eruption-and-strong-degassing.html The Sirung stratovolcano on the remote Pantar island in Indonesia has come back to life with a series of probably phreatic explosions and strong degassing. On 8 May a 3-hour long eruption took place at Sirung volcano. The eruption was accompanied by loud sounds and incandescent tephra observed rising 10 m above the crater. The explosion created an ash plume that reached 3.5 km altitude and... Thu, 17 May 2012 12:05:03 +0200 http://www.volcanodiscovery.com/askja/news/8785/Askja-caldera-Iceland-small-earthquake-swarm-near-Herðubreið-volcano.html A small seismic swarm occurred on 14-15 May near the Askja caldera in central Iceland, just southwest of Herðubreið volcano. Herðubreið volcano, located in the Highlands of Iceland in the midst of the Ódáðahraun desert, is an isolated, table-mountain shaped broad cone that formed beneath the icesheet that covered Iceland during the last ice age, which is when the volcano had its last eruption.... Wed, 16 May 2012 18:15:16 +0200 http://www.volcanodiscovery.com/katla/actualitees/8775/Katla-volcano-Iceland-small-glacial-flood-and-earthquake-swarm.html Katla volcano continues to show signs of increased unrest. A small glacial flood occurred from under the volcano's icecap Katla around 28 April 2012 and possibly again around 7-8 May, both times accompanied by increased levels of harmonic tremor. This suggests that magma movements inside the volcano might be heating up the ground, causing increased melting. A small seismic swarm at depths of... Wed, 16 May 2012 17:48:58 +0200 http://www.volcanodiscovery.com/el-hierro/submarine-eruption-2011.html A slight increase of seismic activity has been noted recently. On 12 May, 5 small quakes occurred in the western part of the island at depths of 2-17 km. It is unlikely that this is a precursor of a new eruptive phase, but rather reflects residual magma movements and minor tectonic adjustments at the recently emplaces dikes beneath the island. Mon, 14 May 2012 18:46:41 +0200 http://www.volcanodiscovery.com/santorini/seismic-activity-2011.html Thu, 10 May 2012 07:22:40 +0200 http://www.volcanodiscovery.com/voir_news/8733/Summary-of-world-wide-volcanic-activity-2-8-May-2012.html The new Smithsonian / USGS Weekly Volcanic Activity Report was published today and is summarized as follows: -- new activity --- Batu Tara (Sunda Islands, Indonesia):occasional ash eruptions reaching 2.4 km altitude Cleveland (Aleutians): small explosions detected on 4-5 May, old lava dome destroyed, new (5th) lava dome growing Pago (Aleutians): strong ash eruptions, plumes reaching 13.7 km... Wed, 09 May 2012 12:35:00 +0200 http://hawaii.volcanodiscovery.com/hawaii/kilauea/current-activity.html Kīlauea's lava flows have surged in activity on the coastal plain accompanying inflation at the summit, though following by about 24 hours. This activity is farther from the ocean than before, relatively close to the base of the pali but moving quickly across cooling flows from the previous two months. Check out our new time-lapse movie showing the height of activity! Wed, 09 May 2012 00:14:38 +0200 http://www.volcanodiscovery.com/etna/current-activity.html Tue, 08 May 2012 22:47:18 +0200 http://hawaii.volcanodiscovery.com/hawaii/kilauea/current-activity.html Since entering the National Park, lava flows have continued to slowly advance towards the ocean but have not made much ground. Pressure variations propagating through Kīlauea volcano have kept the flows from building momentum, but they have persisted sluggishly and lava flows are still visible by means of a 6-7mi / 9-11km round-trip hike from the Kalapana side. When the lava is flowing more... Sat, 05 May 2012 23:40:24 +0200 http://www.volcanodiscovery.com/etna/current-activity.html Since about 2 hours ago, tremor from Etna has started to rise steeply, suggesting that the next (26th) paroxysm of the New SE crater is probably imminent. At the moment, visible observations are difficult due to cloud cover, but it could be expected that there is some strombolian activity right now from the crater. Follow the eruption live: http://webcams.volcanodiscovery.com/ Sat, 05 May 2012 15:00:21 +0200