Chyornye Bratya (, lit. ''Black Brothers''; ) is a pair of uninhabited

volcanic island Geologically, a volcanic island is an island of volcanic origin. The term high island can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs (which have often formed ...

s between

Simushir Simushir (, , ), meaning ''Large Island'' in Ainu, is an uninhabited volcanic island near the center of the Kuril Islands chain in the Sea of Okhotsk in the northwest Pacific Ocean. It was formerly known as Marikan. History Simushir was inha ...

and

Urup Urup (; , ) is an uninhabited volcanic island in the Kuril Islands chain in the south of the Sea of Okhotsk, northwest Pacific Ocean. Its name is derived from the Ainu language word ''urup'', meaning "sockeye salmon". Geography and climate U ...

in the

Kuril Islands The Kuril Islands or Kurile Islands are a volcanic archipelago administered as part of Sakhalin Oblast in the Russian Far East. The islands stretch approximately northeast from Hokkaido in Japan to Kamchatka Peninsula in Russia, separating the ...

chain in the

Sea of Okhotsk The Sea of Okhotsk; Historically also known as , or as ; ) is a marginal sea of the western Pacific Ocean. It is located between Russia's Kamchatka Peninsula on the east, the Kuril Islands on the southeast, Japan's island of Hokkaido on the sou ...

in the northwest

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...

. The larger (northern) of the two is Chirpoy, and the smaller (southern) is Brat Chirpoyev (Russian for ''Chirpoy's Brother''). The origin of the names is uncertain: the original

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 isola ...

name of the island was ''Repunmosir'', a word meaning “place of many small birds”.

Geography

The Chirpoy islands are the remains of a partially submerged volcanic

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...

which measures 8–9 km wide. The two islands are surrounded by a number of small

islet An islet ( ) is generally a small island. Definitions vary, and are not precise, but some suggest that an islet is a very small, often unnamed, island with little or no vegetation to support human habitation. It may be made of rock, sand and/ ...

s and offshore rocks and together, the collective forms the Chyornye Bratya Islands. Both islands are separated by a strait, known in Russian as the 'Snow Strait' () after British explorer Henry James Snow. Chirpoy, the northernmost of the two islands, has an area of approximately 21 km², and consists of three overlapping

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

es named Chyorny and Snow. Chyorny (), with a height of is the tallest point on the island. On November 27, 2012, Snow erupted on this island, and is continuing as of January 2, 2013. Brat Chirpoyev, the southern of the two islands, has an area of approximately 16 km². However, the tallest structure out of both islands is on Brat Chirpoy where tall Brat Chirpoyev dominates the island. Brat Chirpoy is the site of the southernmost of five major

Steller sea lion The Steller sea lion (''Eumetopias jubatus''), also known as Steller's sea lion or the northern sea lion, is a large, near-threatened species of sea lion, predominantly found in the coastal marine habitats of the northeast Pacific Ocean and th ...

rookeries on the Kuril Islands.

History

Chirpoy appears on an official map showing the territories of

Matsumae Domain file:Matsumae Nagahiro.jpg, 270px, Matsumae Nagahiro, final daimyo of Matsumae Domain The Matsumae Domain (松前藩), a prominent domain during the Edo period, was situated in Matsumae, Matsumae Island (Ishijima), which is currently known as M ...

, a

feudal domain A demesne ( ) or domain was all the land retained and managed by a lord of the manor under the feudal system for his own use, occupation, or support. This distinguished it from land sub-enfeoffed by him to others as sub-tenants. In contrast, th ...

Edo period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

dated 1644, and these holdings were officially confirmed by the

Tokugawa shogunate The Tokugawa shogunate, also known as the was the military government of Japan during the Edo period from 1603 to 1868. The Tokugawa shogunate was established by Tokugawa Ieyasu after victory at the Battle of Sekigahara, ending the civil wars ...

in 1715. Administration of the islands came under the Matsumae domain's regional office location on

Kunashir Kunashir Island (; ; ), possibly meaning ''Black Island'' or ''Grass Island'' in Ainu language, Ainu, is the southernmost island of the Kuril Islands. The island has been under Russia, Russian administration since the end of World War II, when S ...

from 1756. In 1801, the Japanese government officially claimed control of the islands, incorporating them into Ezo Province (now

Hokkaidō is the second-largest island of Japan 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 railway via the Seikan Tunnel. The ...

), but

sovereignty Sovereignty can generally be defined as supreme authority. Sovereignty entails hierarchy within a state as well as external autonomy for states. In any state, sovereignty is assigned to the person, body or institution that has the ultimate au ...

passed to the

Empire of Russia The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...

under the terms of the

Treaty of Shimoda The Treaty of Shimoda (下田条約, ''Shimoda Jouyaku'') (formally Treaty of Commerce and Navigation between Japan and Russia 日露和親条約, ''Nichi-Ro Washin Jouyaku'') of February 7, 1855, was the first treaty between the Russian Empire, a ...

in 1855. Under the

Treaty of Saint Petersburg (1875) The Treaty of Saint Petersburg (; ) between the Empire of Japan and the Russian Empire was signed on 7 May 1875, and its ratifications exchanged at Tokyo on 22 August 1875. The treaty itself went into effect in 1877. Its terms stipulated tha ...

, sovereignty passed to the

Empire of Japan The Empire of Japan, also known as the Japanese Empire or Imperial Japan, was the Japanese nation state that existed from the Meiji Restoration on January 3, 1868, until the Constitution of Japan took effect on May 3, 1947. From Japan–Kor ...

along with the rest of the Kuril islands. The islands were formerly administered as part of Uruppu District of

Nemuro Subprefecture is a Subprefectures of Hokkaido, subprefecture of Hokkaido, Hokkaido Prefecture, Japan. Japan claims the southern parts of the Kuril Islands dispute, disputed Kuril Islands (known as the Northern Territories in Japan) as part of this subprefectur ...

of Hokkaidō. In 1952, upon signing the

Treaty of San Francisco The , also called the , re-established peaceful relations between Japan and the Allied Powers on behalf of the United Nations by ending the legal state of war, military occupation and providing for redress for hostile actions up to and inclu ...

, Japan renounced its claim to the islands.History of the Kuril Islands
The islands are uninhabited and are administered as part of the

Sakhalin Oblast Sakhalin Oblast ( rus, Сахали́нская о́бласть, r=Sakhalinskaya oblastʹ, p=səxɐˈlʲinskəjə ˈobləsʲtʲ) is a federal subject of Russia (an oblast) comprising the island of Sakhalin and the Kuril Islands in the Russian ...

of the

Russian Federation Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

References

External links

* {{Authority control 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

Geography

History

See also

References

External links