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Bogatyr Ridge

Hitokappu Volcano Group [Bogatyr Ridge]

Stratovulcano · Japan - administered by Russia · 1610 m

Stokap (center) lies at the SW end of Nishihitokappuyama, an elongated chain of small volcanoes on southern Iturup Island. Nishihitokappuyama consists of a cluster of small NE-SW-trending late-Pleistocene to Holocene cones and craters. Stokap contains 8-10 cones and craters, the largest of which contains a lake. The flank of Etorofu-Atosanupuri is seen in the foreground.
Stokap (center) lies at the SW end of Nishihitokappuyama, an elongated chain of small volcanoes on southern Iturup Island. Nishihitokappuyama consists of a cluster of small NE-SW-trending late-Pleistocene to Holocene cones and craters. Stokap contains 8-10 cones and craters, the largest of which contains a lake. The flank of Etorofu-Atosanupuri is seen in the foreground. · Foto: Photo by Alexander Rybin, 2001 (Institute of Marine Geology and Geophysics, Yuzhno-Sakhalin). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Japan - administered by Russia
Regione
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Altitudine
1610 m
Coordinate
44.857, 147.403
Ultima eruzione
Sconosciuto
Contesto tettonico
Subduction zone / Intermediate crust (15-25 km)
Forma vulcanica
Cluster
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The Hitokappu Volcano Group [Bogatyr Ridge] on Iturup Island in the southern Kuriles consists of a cluster of late-Pleistocene to Holocene cones and craters extending ~14 km NE-SW. The basaltic andesite to andesitic Nishihitokappuyama (also known as Stokap) stratovolcano at the SW end of the ridge appears to be the location of the most recent eruptions, with a summit area that includes 8-10 cones and explosion craters, the largest of which contains a lake. The volcanic chain was constructed over a high Pleistocene base, whose glaciated surface is covered by lava flows from Nishihitokappuyama that reach to both the Pacific Ocean and the Sea of Okhotsk. JMA (2013) does not include this as a Holocene volcano.

Sintesi da Wikipedia

Riassunto in inglese

Bogatyr Ridge is a stratovolcano located in the central part of Iturup Island, Kuril Islands, Russia. The highest peak of the ridge is Stokap which is also the highest peak of the island.

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