Chirinkotan (russian: Чиринкотан; Japanese 知林古丹島; Chirinkotan-tō) is an uninhabited volcanic island located in the centre of the Kuril Islands chain in the

Sea of Okhotsk The Sea of Okhotsk ( rus, Охо́тское мо́ре, Ohótskoye móre ; ja, オホーツク海, Ohōtsuku-kai) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands ...

in the northwest Pacific Ocean. Its name is derived from the

Ainu language Ainu (, ), or more precisely Hokkaido Ainu, is a language spoken by a few elderly members of the Ainu people on the northern Japanese island of Hokkaido. It is a member of the Ainu language family, itself considered a language family isolate ...

for "mudslide". It is located west of Ekarma, its nearest neighbor.

Geology

Chirinkotan is at the far end of a volcanic chain extending nearly 50 km west of the central part of the main Kuril Islands arc. The island is the top of a partially submerged

stratovolcano A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...

rising approximately from the floor of the Sea of Okhotsk, and is roughly circular with an area of . The island's highest point ("Masaochi" in Ainu) is high, and is still an active volcano with major eruptions recorded in 1760, 1884, 1900, 1979, 1986, 2004, and 2013. Reports of a 1955 eruption are unconfirmed. The caldera is approximately wide, with a depth of , and is breached on its south-east side. The shores of the island are steep cliffs, making landing by small boat impossible.

History

Chirinkotan has had no permanent habitation. Claimed by the Empire of Russia, sovereignty was passed to the Empire of Japan per the Treaty of Saint Petersburg along with the rest of the Kuril Islands. The island was formerly administered as part of Shumushu District of Nemuro Subprefecture of

Hokkaidō is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...

. After World War II, the island came under the control of the Soviet Union, and is now administered as part of the Sakhalin Oblast of the Russian Federation.

Fauna

In the spring and early summer crested, whiskered, and

parakeet auklet The parakeet auklet (''Aethia psittacula'') is a small seabird of the North Pacific. Parakeet Auklets used to be placed on its own in the genus ''Cyclorrhynchus'' ( Kaup, 1829) but recent morphological and genetic evidence suggest it should be pl ...

nest on the island.Kondratyev, A. Y., Litvinenko, N. M., Shibaev, Y. V., Vyatkin, P. S., & Kondratyeva, L. F. (2000)
"The breeding seabirds of the Russian Far East"
''Seabirds of the Russian Far East'', 37-81.

References

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External links

Sakhalin Oblast

Notes

Active volcanoes Islands of the Sea of Okhotsk Islands of the Russian Far East Stratovolcanoes of Russia Islands of the Kuril Islands Uninhabited islands of Russia Uninhabited islands of the Pacific Ocean Calderas of Russia Volcanoes of the Kuril Islands Mountains of the Kuril Islands Holocene stratovolcanoes {{SakhalinOblast-geo-stub