Global Volcanism Program | Image GVP-04549
A gas-and-steam plume, possibly containing minor amounts of ash, rises above the summit of Korovin volcano on 4 March 1987. This view of Korovin, north of Atka, was taken from the south. A satellite image on 18 March showed three distinct plumes originating from Korovin and two vents to the south.
Photo by Harold Wilson (Peninsula Airways), 1987 (courtesy of John Reeder, Alaska Div. Geology Geophysical Surveys).