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Rasshua (Russian: Расшуа, Japanese: 羅処和島), is an uninhabited volcanic island near the center of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean, 16 kilometres (9.9 mi) from Ushishir and 30 kilometres (19 mi) southwest of Matua. Its name is derived from the Ainu language for “fur coat”.

Rasshua
Native name:
Расшуа
羅処和島
NASA picture of Rasshua Island
Geography
LocationSea of Okhotsk
Coordinates47.77°N 153.02°E / 47.77; 153.02
ArchipelagoKuril Islands
Area63.2 km2 (24.4 sq mi)
Highest elevation956 m (3136 ft)
Highest pointRasshua
Administration
 Russia
Demographics
Population0
Ethnic groupsAinu (formerly)

Geology


Rasshua is roughly oval, with a length of 15.5 kilometres (9.6 mi) with a width of 6.5 kilometres (4.0 mi), and an area of 63.2 square kilometres (24.4 sq mi).[1] The island is a complex stratovolcano with three overlapping central cones within a 6 kilometer caldera whose eastern margin is beyond the shoreline. The island has five small fresh water lakes, and numerous hot springs.

Rasshua Peak (Russian: влк. Расшуа, Japanese: 幌茶々登山, romanized: Horochachanobori-yama), in the west of the island is the island’s highest point at 956 metres (3,136 ft). The peak has not erupted in historic times, although it emits quantities of volcanic gas and its sides are streaked with sulfur deposits.

The easternmost cone (Japanese: 長頭山, romanized: Chōtōzan; (Russian: гора Циото) with a height of 503 metres (1,650 ft), violently erupted in 1846. The only other known historical eruption produced weak explosions in 1957. Active fulmaroles are found in the eastern crater and in the saddle between the two summit cones. It had a mild eruption on February 6, 2013.


Major features


Rasshua Island as seen from the Sea of Okhotsk looking south.
Rasshua Island as seen from the Sea of Okhotsk looking south.



History


Rasshua was inhabited by the Ainu, at the time of European contact, and the remains of over 40 dwellings have been discovered. The island appears on an official map showing the territories of Matsumae Domain, a feudal domain of Edo period Japan dated 1644, and these holdings were officially confirmed by the Tokugawa shogunate in 1715. Subsequently, claimed by the Empire of Russia, sovereignty initially passed to Russia under the terms of the Treaty of Shimoda, but was returned to the Empire of Japan per the Treaty of Saint Petersburg along with the rest of the Kuril islands. At this time, the remaining Ainu inhabitants (eight families) were forcibly relocated to Shikotan, and the island became uninhabited. The island was formerly administered as part of Shimushiru District of Nemuro Subprefecture of Hokkaidō.

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.


See also



Further reading



Notes


  1. "International Kuril Island Project(IKIP)". University of Washington Fish Collection or the respective authors.

References





На других языках


[de] Rasschua

Rasschua (russisch Остров Расшуа; jap. .mw-parser-output .Hani{font-size:110%}羅処和島, Rasushua-tō) ist eine unbewohnte Vulkaninsel im Archipel der Kurilen und gehört administrativ zur russischen Oblast Sachalin.
- [en] Rasshua

[es] Rasshua

Rasshua (en ruso, Расшуа, y en japonés, Rasushua) es una isla rusa en el archipiélago de las Kuriles. Tiene una superficie de 67 km². Pertenece al grupo de las Kuriles centrales.

[fr] Rasshua

Raschoua, en russe Расшуа, en japonais 羅処和島, Rasuwa, est une île volcanique de Russie située dans l'océan Pacifique et faisant partie des îles Kouriles, entre les îles de Ketoï au sud-ouest et Matoua au nord-est. Elle constitue le sommet émergé d'un stratovolcan et culmine à 956 mètres d'altitude.

[it] Rasšua

Rasšua (in russo Расшуа; in giapponese 羅処和島, Rasushua-tō) è un'isola russa che fa parte dell'arcipelago delle Isole Curili ed è situata tra il Mare di Ochotsk e l'Oceano Pacifico settentrionale. Amministrativamente fa parte del Severo-Kuril'skij rajon dell'oblast' di Sachalin, nel Circondario federale dell'Estremo Oriente. Il suo nome viene dalla lingua ainu e significa "mantello di pelliccia". L'isola è disabitata.

[ru] Расшуа

Расшу́а (на российской карте 1745-го года — Воевода[2]) — остров средней группы Большой гряды Курильских островов. Административно входит в Северо-Курильский городской округ Сахалинской области. В настоящее время остров необитаем, хотя в прошлом определённую хозяйственную деятельность на нём осуществляли и постоянно проживали немногочисленные айны, в переводе с языка которых Расшуа означает «шуба»[источник не указан 860 дней].



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