Dome growth continues at Chaiten volcano in Chile. Between 17-23 March 2009, the lava dome at Chaiten produced constant degassing and release of water vapor, and varying amounts of ash. Gravitational collapse occurred in unstable areas. Dome growth is occurring mainly in the centre, which has formed a tall, hot and unstable spine. Ash emissions have reached Futaleufú, SE of the volcano. There has been a significant decrease in number and magnitude of earthquakes. Earthquake measurements indicate the dome continues to grow at a lower rate, with a very localized and shallow seismicity. Chaiten volcano remains on RED alert due to ongoing dome growth, and the possibility of collapse, leading to pyroclastic flows, some of which could extend into the Chaitén River valley.
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About John Seach
- John Seach
- John Seach is a scientist and the world's leading volcano adventurer. Over the past 24 years John has traveled to the world's most exciting volcanoes, and witnessed eruptions during trips to more than 200 volcanoes. John's work has been featured on award winning television programmes. John is the founder of "Volcano Live", the world's first volcano news and volcano travel website.