September 17: On This Day in World History … briefly
Alaska Volcano Observatory completed installation of another seismometer near Fourpeaked in October 2006 and almost immediately they detected an earthquake swarm of lower magnitude quakes.
2006: Alaskan mountain erupts for the first time in 10 000 years
Fourpeaked Volcano is an active stratovolcano in Alaska. The Alaska Volcano Observatory rates Fourpeaked Volcano as Aviation Alert Level Green and Volcanic-alert Level Normal. It is nearly completely covered by Fourpeaked Glacier. Before the eruption began in September 17, 2006, Fourpeaked volcano had been dormant for over 10 000 years.
Pilots and other civilians reported two distinct and very large steam plumes coming from Fourpeaked volcano. They were seen as far away as Homer, Alaska located northeast of Fourpeaked across Cook Inlet. Scientists on subsequent flights by USGS/AVO discovered that volcanic gases were being vented ‘vigorously’ near the summit. Air sampling confirmed these findings. The Alaska Volcano Observatory officially classified this event as an explosive eruption.
Most notable historic snippets or facts extracted from the book ‘On This Day’ first published in 1992 by Octopus Publishing Group Ltd, London, as well as additional supplementary information extracted from Wikipedia.
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