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Iōtorishima
or Iwo Tori-shima, also called Okinawa Torishima (沖縄鳥島), is a volcanic island part of the Ryūkyū Island chain with the only active volcano in Okinawa Prefecture. Geography Iotourishima is located 65 km west of Tokunoshima Island. On exceptionally clear days, Iōtorishima can be seen from the west coast of Tokunoshima. The 2.50 km² large island consists of two interconnected volcanoes made from andesite. The southern Gusuku kazan (グスク火山, "Castle Volcano") is a lava dome located in the center of the two summits. The northern Iōdake-kazan (硫黄岳火山, "Sulfur Peak Volcano") is a stratovolcano whose crater consists of a small lake of sulfur. It is still active, although none of the recent outbreaks had explosive character. The highest point of the island is at 212 m, which belongs to Iōdake-kazan; the highest of the Gusuku kazan is the Maedake (前嶽) at 189.3 m. History Sulfur was mined by the inhabitants for centuries within the Kingdo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Japan
This is a list of active and extinct volcanoes in Japan. An Orange background indicates a volcano considered active by the Japan Meteorological Agency. Hokkaido Honshū Izu Islands Ogasawara Archipelago The Ogasawara Archipelago include the Bonin Islands and Volcano Islands. Kyūshū Ryūkyū Islands See also * Notes and references Notes References External links Quaternary Volcanoes of Japan- Geological Survey of Japan - Geological Survey of Japan * ttp://www.data.jma.go.jp/svd/vois/data/tokyo/STOCK/souran_eng/souran.htm The National Catalogue of the Active Volcanoes in Japan- Japan Meteorological Agency 日本の主な山岳標高 (Elevation of Principal Mountains in Japan)- Geospatial Information Authority of Japan {{Asia topic, List of volcanoes in Japan Lists of coordinates Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Japan
This is a list of active and extinct volcanoes in Japan. An Orange background indicates a volcano considered active by the Japan Meteorological Agency. Hokkaido Honshū Izu Islands Ogasawara Archipelago The Ogasawara Archipelago include the Bonin Islands and Volcano Islands. Kyūshū Ryūkyū Islands See also * Notes and references Notes References External links Quaternary Volcanoes of Japan- Geological Survey of Japan - Geological Survey of Japan * ttp://www.data.jma.go.jp/svd/vois/data/tokyo/STOCK/souran_eng/souran.htm The National Catalogue of the Active Volcanoes in Japan- Japan Meteorological Agency 日本の主な山岳標高 (Elevation of Principal Mountains in Japan)- Geospatial Information Authority of Japan {{Asia topic, List of volcanoes in Japan Lists of coordinates Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryukyu Islands
The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni the westernmost. The larger are mostly high islands and the smaller mostly coral. The largest is Okinawa Island. The climate of the islands ranges from humid subtropical climate (Köppen climate classification ''Cfa'') in the north to tropical rainforest climate (Köppen climate classification ''Af'') in the south. Precipitation is very high and is affected by the rainy season and typhoons. Except the outlying Daitō Islands, the island chain has two major geologic boundaries, the Tokara Strait (between the Tokara and Amami Islands) and the Kerama Gap (between the Okinawa and Miyako Islands). The islands beyond the Tokara Strait are characterized by their coral reefs. The Ōsumi and Tokara Islands, the northernmost of the isla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokunoshima
, also known in English as is an island in the Amami archipelago of the southern Satsunan Islands of Kagoshima Prefecture, Japan. The island, in area, has a population of approximately 27,000. The island is divided into three administrative towns: Tokunoshima, Isen, and Amagi. The largest population center on the island is the town of Kametsu, located along the eastern shore of the island within the administrative town of Tokunoshima. Much of the island is within the borders of Amami Guntō National Park. The island is known for having the highest birth rates in Japan as well as a significant population of supercentenarians (people living significantly beyond the age of 100). Geography Tokunoshima is the second largest island in the Amami islands, after Amami Ōshima, and the 15th largest island in Japan. It is more generally included within the Satsunan and Ryukyu archipelagos. Isolated from the other Amami islands, Tokunoshima is located halfway between Amami Ōshima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kumejima, Okinawa
is a town located in Shimajiri District, Okinawa Prefecture, Japan. The town consists of the islands of Kume, Ōjima, Ōhajima, Torishima, and Iōtorishima. Among the islands, only Kumejima and Ōjima are populated. Kumejima is located approximately west of Naha. The town can be accessed by the New Kumejima Ferry, Japan Transocean Air, or Ryukyu Air Commuter. Kumejima Airport serves the island. , the town had an estimated population of 7,647 and a population density of . The total area is . Kume Island is often said to be one of the most beautiful of the Okinawa Islands. It is well known for its textiles, called Kumejima-tsumugi which are designated an Important Intangible Cultural Property. The town is also known for its Kumesen Awamori (Okinawan sake) and deep sea water. Kumejima's main industries are sugar cane (sato-kibi), tourism, and deep seawater products. History Historically due to Kume's abundance of freshwater, rice was once extensively cultivated. In 1506, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands In Japan
Japan is an archipelago of 6,852 islands, of which approximately 260 are inhabited. Japan is the largest island country in East Asia and the fourth largest in the world. Main islands The four ''main islands'' of Japan are:Imperial Japanese Commission to the Louisiana Purchase Exposition. (1903)''Japan in the Beginning of the 20th century'' (Haruki Yamawaki, editor), p. 2 *Hokkaido - the northernmost and second largest main island. *Honshu - the largest and most populous island with the capital Tokyo. *Kyushu - the third largest main island and nearest to the Asian continent. *Shikoku - the smallest main island, it is between Honshu and Kyushu. Hokkaido prefecture * Ōshima * Okushiri Island * Teuri Island * Rebun Island * Rishiri Island * Yagishiri Island *Kamome island Islands of Honshu in the Sea of Japan * Awashima Island, Niigata * Kanmurijima * Kutsujima, Kyoto * Mitsukejima * Nanatsujima archipelago * Notojima * Oki Islands (Oki Islands) Ponsonby-Fane, Ric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of Japan
Japan is an archipelago of 6,852 islands, of which approximately 260 are inhabited. Japan is the largest island country in East Asia and the fourth largest in the world. Main islands The four ''main islands'' of Japan are:Imperial Japanese Commission to the Louisiana Purchase Exposition. (1903)''Japan in the Beginning of the 20th century'' (Haruki Yamawaki, editor), p. 2 *Hokkaido - the northernmost and second largest main island. *Honshu - the largest and most populous island with the capital Tokyo. *Kyushu - the third largest main island and nearest to the Asian continent. *Shikoku - the smallest main island, it is between Honshu and Kyushu. Hokkaido prefecture * Ōshima * Okushiri Island * Teuri Island * Rebun Island * Rishiri Island * Yagishiri Island *Kamome island Islands of Honshu in the Sea of Japan * Awashima Island, Niigata * Kanmurijima * Kutsujima, Kyoto * Mitsukejima * Nanatsujima archipelago * Notojima * Oki Islands (Oki Islands) Ponsonby-Fane, Ric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the Crust (geology), crust of a Planet#Planetary-mass objects, planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and volcanic gas, gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where list of tectonic plates, tectonic plates are divergent boundary, diverging or convergent boundary, converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Okinawa Prefecture
is a prefecture of Japan. Okinawa Prefecture is the southernmost and westernmost prefecture of Japan, has a population of 1,457,162 (as of 2 February 2020) and a geographic area of 2,281 km2 (880 sq mi). Naha is the capital and largest city of Okinawa Prefecture, with other major cities including Okinawa, Uruma, and Urasoe. Okinawa Prefecture encompasses two thirds of the Ryukyu Islands, including the Okinawa, Daitō and Sakishima groups, extending southwest from the Satsunan Islands of Kagoshima Prefecture to Taiwan ( Hualien and Yilan Counties). Okinawa Prefecture's largest island, Okinawa Island, is the home to a majority of Okinawa's population. Okinawa Prefecture's indigenous ethnic group are the Ryukyuan people, who also live in the Amami Islands of Kagoshima Prefecture. Okinawa Prefecture was ruled by the Ryukyu Kingdom from 1429 and unofficially annexed by Japan after the Invasion of Ryukyu in 1609. Okinawa Prefecture was officially founded in 1879 by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende. Andesite is the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts, andesites are a component of the Martian crust. The name ''andesite'' is derived from the Andes mountain range, where this rock type is found in abundance. It was first applied by Christian Leopold von Buch in 1826. Description Andesite is an aphanitic (fine-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 65% of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volcano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
