Global Volcanism Program | Image GVP-02465
Following a period of explosive eruptions and lava-dome growth beginning in October 1955, a major explosive eruption took place on 30 March 1956 at Bezymianny volcano in Kamchatka. The Plinian eruption, seen here from 100 km W, produced a 40-km-high ash column, pyroclastic flow to a distance of 18 km, lateral blast, and a debris avalanche when the summit of the volcano collapsed.
Photo by I. Erova, 1956 (courtesy of G.S. Gorshkov, published in Green and Short, 1971).