An ash plume rises above the scoria cone in the Akutan summit caldera of on 2 March 1987. This view from the WSW shows Mount Gilbert, a Pleistocene volcano on Akun Island and the peaks of Westdahl, Shishaldin, and Isanotski (left to right) on distant Unimak Island.

Photo by Harold Wilson (Peninsula Airways), 1987 (courtesy of John Reeder, Alaska Div. Geology & Geophysical Surveys).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Galleries: Ash Plumes and Ashfall | Scoria Cones | Calderas

Keywords: ash plume | ash | plume | tephra | eruption | scoria cone | crater | caldera | deposit | ashfall | wind dispersal

Akutan