An ash plume rises above Alaid on 30 April 1981, at the peak of an eruption that began on 27 April (seen here from the N). The plume extended 2,000 km to the SE. The volcano has a 1.5-km-wide summit crater and numerous cones across the lower flanks. Explosive eruptions in 1790 and 1981 were among the largest in the Kuril Islands.

Photo courtesy of Anatoli Khrenov, 1981 (Institute of Volcanology, Petropavlovsk).

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

Galleries: Explosive Eruptions | Ash Plumes and Ashfall

Keywords: eruption | ash plume | ash | plume | explosive eruption | wind dispersal

Alaid