Global Volcanism Program | Image GVP-02486
An ash plume from Klyuchevskoy in 1979 is dispersed in front of the sun in this view looking from the SW. This was part of a dominantly explosive eruption that took place from August 1977 until 1980. The eruption concluded with explosive activity and lava effusion from a flank vent during 5-12 March 1980. Ushkovsky is to the right, with the small Sredny cone in the center.
Photo by Yuri Doubik, 1979 (Institute of Volcanology, Petropavlovsk).