A lava fountain and ash plume rise above a volcanological field camp on Tolbachik volcano in July 1975. This photo was taken several days after the onset of activity along the southern rift zone on 6 July, and by this time the new scoria cone had grown to a height of 200 m. The upper flanks of the cone are blanketed by incandescent volcanic bombs.

Photo by Yuri Doubik, 1975 (Institute of Volcanology, Petropavlovsk).

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

Keywords: lava fountain | ballistic ejecta | ballistics | ejecta | bombs | scoria cone | eruption

Tolbachik