Andesitic #lava flow from 1906 eruption of #Kanaga, a stratovolcano in Alaska that underwent at least 1 structural failure & flank collapse http://pic.twitter.com/eR9kMjsJ1c
— jaime s. sincioco (@jaimessincioco) April 17, 2017
via Twitter https://twitter.com/jaimessincioco
April 17, 2017 at 12:17PM
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