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Sinarka volcanoSinarka volcano is an andesitic stratovolcano on the northern end of Shiashkotan Island in the central Kuriles, Russia. The youngest features are 2 lava domes, which have had small explosive eruptions in historic times.
Background:Sinarka has a complex structure: A small, 2-km-wide depression open to the NW has been largely filled and overtopped by an andesitic postglacial central cone that itself contains a lava dome that forms the 934 m high point of the island. Another lava dome, Zheltokamennaya Mountain, lies 1.5 km to the SW along the buried SW rim of the caldera, and a smaller dome lies along the northern caldera rim.