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Chaitén volcano (Chile): activity updates & news

Chaitén volcano
Caldera, lava dome 1122 m
El sur de Chile y Argentina, América del sur, -42.83°S / -72.65°W
Current status: normal or dormant (1 out of 5)
Chaitén webcams / datos en tiempo real | Reports
Chaitén volcano books
Erupciones del volcán Chaitén:
2 May 2008 (plinian eruption) - 2011
Typical eruption style:
Explosive, lava dome growth
Últimos terremotos cercanos
Latest satellite images
 

Chaitén volcano (Chile), eruption news: summary of the subplinian eruption on 7 May

jueves may 08, 2008 09:54 |

This is a summary of the eruption events at Chaitén volcano:
The subplinian eruption of Chaitén volcano on May 2, 2008 followed increased seismicity in the region the day before. A pulsating white to gray ash plume rose to an estimated altitude greater than 21 km (68,900 ft) a.s.l. and drifted SSE. The Alert Level was raised to Red.
Based on observations of satellite imagery and pilot reports, the Buenos Aires VAAC reported an ash plume at altitudes of 13.7-16.8 km (45,000-55,000 ft) a.s.l. drifted NE. According to news articles, Chile's government declared a state of emergency on 2 May and several hundred people were evacuated from the town of Chaitén (10 km SE). The eruption was initially thought to have been from Minchinmávida, about 17 km ENE, which last erupted in 1835.

According to news sources, ashfall was reported during 2-6 May both locally and up to hundreds of kilometers away, affecting water supplies and roads. Based on observations of satellite imagery and pilot reports, the Buenos Aires VAAC reported that during 3-6 May ash plume rose to altitudes of 7-10.7 km (23,000-35,000 ft) a.s.l. and drifted SE, E, W, and NE. News sources indicated that about 4,000-5,000 people were evacuated from the town of Chaitén and
surrounding areas as the eruption continued. On 5 May, ONEMI (Oficina Nacional de Emergencia - Ministerio del Interior) reported that evacuations took place in Futaleufú, about 65 km ESE, where about 30 cm of ash accumulated. One elderly person died during the evacuation efforts. On 6 May, ONEMI and SERNAGEOMIN reported that the eruption became more forceful and generated a wider and darker gray ash plume to an estimated altitude of 30 km (98,400 ft) a.s.l. All remaining people in Chaitén were ordered to evacuate, as well as anyone within 50 km of the volcano.
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Enlaces / Fuentes:
  • Servicio Nacional de Geología y Minería (SERNAGEOMIN): www.sernageomin.cl/index.php
  • Oficina Nacional de Emergencia - Ministerio del Interior (ONEMI): www.onemi.cl
  • Buenos Aires Volcanic Ash Advisory Center (VAAC): www.ssd.noaa.gov/VAAC/OTH/AG/messages.html
Noticias Anteriores
sábado, may 03, 2008
The until now rather unknown Chilenean Chaitén volcano erupted violently on 2 May. Chaiten is a small, glacier-free caldera with a lava dome located 10 km NE of the town of Chaitén on the Gulf of Corcovado. There were no known historic eruptions and its last activity might go back several thousands of years. [Leer más]
 

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