Curly Volcano
Sakhalin region, Great Kuril ridge, Iturup Island, Pacific Ocean, Russia.
Description:
Curlyavy is an active volcano located on the island of Iturup Big Range of the Kuril Islands. It is located in the north of the island, in the center of the Bear Range, two kilometers southwest of the Bear Mountain.
It is a complex stratovolcano composed of bipyroxene andesites and has several craters. Its height reaches 986 meters.
The dome of the volcano, with a height of 350 meters, resembles an isosceles triangle in its shape. Its southwestern slope is quite steep, and the northeast is almost flat. At the top there are 2 craters with solfatars. Their bottom is uneven and dismembered by lintels due to the fact that the Japanese mined sulfur in them. The southwestern crater has fumaroles. Both craters share a distance of 450 meters.
In 1779 and 1883, eruptions occurred from the volcano, and in 1946 and 1999 - phreatic explosions. To date, fumarole activity has been observed on Kudryav.
In 1992, a rhenium deposit was discovered on the volcano. It is represented by a fumarole field, on which sources of high-temperature deep fluids constantly operate. This means that the field is still being formed.