Jim Vallance (USGS) describes geologically-young tephra (ash) deposits from Makushin that outcrop alongside the runway at Dutch Harbor. Photo credit: Jess Larsen, AVO/UAFGI, July 2015.

Jim Vallance (USGS) describes geologically-young tephra (ash) deposits from Makushin that outcrop alongside the runway at Dutch Harbor. Photo credit: Jess Larsen, AVO/UAFGI, July 2015.

Date: July 21, 2015
Volcano(es): Makushin
Photographer: Jessica Larsen
URL: avo.alaska.edu/image/view/79961
Credit: Image courtesy of the AVO/UAF-GI.
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