Ushishishir volcano
North Kuril city district, Sakhalin region, Russia.
Description:
Ushishishir is an active volcano located on the island of Yankicha, which is part of the Ushishishir group of islands and the range of islands of the Kuril archipelago.
The caldera of the volcano has a diameter of about 1.5 kilometers, and its maximum height is 388 meters. The volcano formed about 9,400 years ago, later it was flooded by the southern wall, which was filled with water, and was called Crater Bay. In the center of the bay are two small domes consisting of andesite lava. The remaining two more ancient domes are connected by a shoal with the southern wall of the caldera of the volcano.
The last recorded eruption of Ushishishir took place in 1884. At the beginning of the XXI century, there is a strong thermal and fumarole activity.