Intermittent explosive eruptions took place from the scoria cone in Akutan caldera during 31 January-2 March and 22-24 June 1987. This 11 February photo from the SE shows an ash plume rising from a crater at the top of the cone. Ash was deposited across the cone flank and the N side of the caldera floor.

Photo by Jerry Chisum (Mark 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 | ashfall

Akutan