Chaitén volcano (Chile), activity update: lava dome collapse (19 Feb 09)
Chaitén volcano experienced an increase in activity over the past few weeks. Yesterday, around 11 am local time on 19 Feb., a largere section of the growing lava dome in the crater collapsed, triggering a large pyroclastic flow that came close to the already largely abandoned town of Chaitén. According to press reports, heavy ash falls occurred in the area and the evacuation of the remaining residents of the town is under way. ONEMI reports the eruption of a considerable column of ash.
ven., 20 févr. 2009, 12:0012:00 PM |
Similar future events triggering pyroclastic flows, as well as mud flows by remobilization of fresh ash by rains could occur any time and threaten what is left of the town of Chaitén.
- SERNAGEOMIN - Servicio Nacional de Geología y Minería (Spanish)
jeu., 15 janv. 2009, 22:45
It was reported that during 29 December-9 January Chaitén's lava dome continued to grow. Plumes rose to altitudes of 2.6-3.1 km. Block-and-ash flows from frequent spine collapses fell down from the edge. lire toutes
ven., 21 nov. 2008, 21:42
During 12-17November ash plumes from Chaitén continuously rose to altitudes 1.4-3.7 km and a thermal anomaly was detected on satellite photos on 12 November ... lire toutes
mer., 12 nov. 2008, 14:39
The new lava dome of Chaitén volcano continues to grow and emit a dense plume of mainly vapour, typically rising to ca. 2 km altitude. Seismic activity beneath the volcano remains high. lire toutes
sam., 8 nov. 2008, 13:50
Heavy rainfalls have caused Rio Blanco river (Chaitén r.) to swell dramatically. Floods have broken through the barriers and containment works that have been built since June, destroying at least 30 homes in Chaitén town. ... lire toutes
ven., 31 oct. 2008, 14:22
Ash plumes were reported by viewing the volcano webcam and satellite images from 24-28 October. Also a thermal anomaly was detected. ... lire toutes