Photograph of Krasheninnikov by Jack Lockwood, U.S. Geological Survey.

Krasheninnikov, 2460-3280 ft (750-1000 m) above its surroundings, is actually two connected cones with independent craters at their summits. It is situated in a caldera of an old volcano with a diameter of 5.6 miles (9 km). The lower north cone cuts into the top of the south cone with its crater. The sides of both cones are covered with ejecta. Lava flows protrude out at points from underneath the ejecta on the west, south and north slopes of the volcanic edifice and are buried under cone deposits in the east. The caldera's rim reaches a height of 656-1640 ft (200 to 500 m) over the foot of the inner cones. There are three cinder cones at the bottom of the caldera and another three on the southeastern outer slopes and one on the northern. Lava has flowed out of most of these craters forming large fields of lava.


This excellent Space Shuttle photograph shows a number of volcanic structures along the shore of the Pacific Ocean on the Kamchatka peninsula of Russia. This peninsula includes many active volcanoes, but was off-limits to foreign scientists until after the collapse of the Soviet Union. The two major volcanoes shown here are Kronotsky, the shadow casting stratovolcano,and Kransheninnikov, the 9 x 10 km diameter caldera to the south of it. Inside its caldera are younger and smaller volcanic calderas.


Source: Kamchatka Calendar

A crater with a diameter of 2952 ft (900 m) and a depth from 230-459 ft (70-140 m) is located on the inner south cone's summit . The bottom of this crater has been flooded by lava. No fumaroles are present on Krasheninnikov. The inner north cone crater is larger and forms a 0.93 by 1.55 mile (1.5 by 2.5 km) caldera that elongates and cuts into the top of the south cone. A 377 ft (115 m) cinder cone is located inside this caldera and has filled most of the caldera with ejecta. A crater with a diameter of 1968 ft (600 m) is located at the summit of this cone. Within its crater is located another cinder cone that measures 197 ft (60 m) in height and has its own summit crater with a diameter of about 49.2 ft (15 m). Small streams of lava have flowed out of this crater recently. The last large outpourings of fresh lava came from the southern summit of the volcano. They are about 39 ft (12 m) thick in the lower sections and in the level areas about 130 ft (40 m) thick. These fresh lava flows along with volcanic ash, scoria and rounded bombs up to 3.28 ft (1 m) around indicate a very recent and active history for Krasheninnikov.


Source: Kamchatka Calendar.




Vlodavetz, V.I. and Piip, B.I., "Catalogue of the Active Volcanoes of the World Including Solfatara Fields: Part VIII, Kamchatka and Continental Areas of Asia," International Volcanological Association, Napoli, Italy, 110 pp., 1959.

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