Zavaritski Caldera (russian: Вулкан Заварицкого, ''Vulkan Zavaritskogo'') is a

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcano eruption. When large volumes of magma are erupted over a short time, structural support for the rock above the magma chamber is ...

located in the central part of

Simushir Simushir (russian: Симушир, ja, 新知島, translit=Shimushiru-tō, ain, シムシㇼ, translit=Simusir), meaning ''Large Island'' in Ainu, is an uninhabited volcanic island near the center of the Kuril Islands chain in the Sea of Okho ...

Island,

Kuril Islands The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eig ...

. Lake Biryuzovoe partially fills the youngest of three nested calderas on the volcano. The volcano is named after Alexander Nikolayevich Zavaritski, scientist of the

Academy of Sciences of the Soviet Union The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991, uniting the country's leading scientists, subordinated directly to the Council of Ministers of the Soviet Union (until 1946 ...

References

* * Aerial image retrieve fro
NASA Technical Reports Server
on 19 April 2007. Simushir Active volcanoes Volcanic crater lakes Calderas of Russia Volcanoes of the Kuril Islands Pleistocene calderas Holocene calderas {{SakhalinOblast-geo-stub

See also

References