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Makushin reported activity

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EVENT SPECIFIC INFORMATION

Event Name : Makushin Glacier Valley Debris Flow/Avalanche

This is a questionable event.

Stop: 4280 (± 230 Years) Years BP C-14 (raw)

Debris-avalanche, volcanic avalanche, or landslide: BibCard BibCard BibCard
Eruption Type:Explosive
Other""

Description: From Beget and others (2000): "The largest postcaldera volcanic event produced a debris avalanche deposit more than 15 meters thick that inundated a valley on the southeast flank of Makushin Volcano more than 2,500 years ago, traveling more than 10 kilometers from the volcano."

From Bean (1999): "Nye and others (1984) reported an age of 4280+/-230 14C yr B.P. for organic material (sample no. Nye83) taken from the uppermost portion of volcanic deposits in Glacier Valley. From sample locations this indicates a minimum age for the debris avalanche deposit."

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Page modified: March 30, 2017 14:36
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