Zheltovsky volcano, seen here from Diky Greben volcano to its SW, was constructed during the last 8000 years within a 4 x 5 km caldera truncating an earlier Pleistocene edifice. A late-Holocene explosive eruption formed a 1.6-km-wide summit crater that was largely filled by four lava domes, the latest of which forms the present 1953-m-high summit. Only a few eruptions are known in historical time. The largest, in 1923, produced explosive activity and a lava flow down the SE flank that partially flowed into the summit crater.
Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk).