Mageshima (馬毛島), is one of the Satsunan Islands, usually classed with the Ōsumi Islands belonging to Kagoshima Prefecture, Japan. It is administered by the city of Nishinoomote on Tanegashima.

Native name:
Japanese: 馬毛島
Mage Island East side
Mageshima from the east
LocationEast China Sea
Coordinates30°44′29.9″N 130°51′16.9″E / 30.741639°N 130.854694°E
ArchipelagoŌsumi Islands
Area8.2 km2 (3.2 sq mi)
Coastline16.5 km (10.25 mi)
Highest elevation71.7 m (235.2 ft)
Highest pointTakenokoshi
Kagoshima Prefecture
Ethnic groupsJapanese


Mageshima is located 12 kilometres (6.5 nmi) west of Tanegashima. The island is of volcanic origin, and has an area of approximately 8.2 square kilometres (3.2 sq mi) with a circumference of 16.5 kilometres (10.3 mi). The highest elevations on the island are Takenokoshi (岳之越), with a height of 71.7 metres (235 ft) above sea level.

The island’s climate is classified as subtropical, with a rainy season from May through September.


Mageshima has been occupied, at least seasonally, since the Kamakura period, as fishermen from neighboring Tanegashima would use it as a base of operations. The inhabitants were evacuated during World War II for security reasons. In 1951, an effort was made to colonize the island with government assistance, and the island population reached a peak of 528 people in 113 households in 1958. The economy of the island was based on the production of sugar cane and vinegar, as well as commercial fishing. However, difficulties with agriculture due to pests, and due to foreign completion caused many islanders to abandon the island from the late 1960s.

In 1974, the Heiwa Sogo Bank started a resort venture and floated plans for construction of the national oil reserve on the island, but neither plan came to fruition. In March 1980, the last resident left the island. In 1995, a subsidiary of Tateishi Construction acquired the island, and announced plans to construct a landing field for the Japanese space shuttle, HOPE-X, on the island. Other plans to establish a spent nuclear fuel storage facility were also announced. However, subsequently no construction has been taken and the HOPE-X project itself was cancelled in 2003. In 2009, Mageshima came under consideration as a possible relocation site for the Marine Corps Air Station Futenma in Ginowan, Okinawa, or at least as a site for the United States Navy to relocate its aircraft carrier aircraft touch-and-go training. However, Tateishi Construction subsequently came under investigation for tax fraud and for collusion with politicians over the project. Initial logging to clear an area for the proposed runways was performed without proper permission, and in September 2011 local fishermen filed lawsuits alleging damage to fishing grounds due to increased runoff created by the illegal logging.


  • McCormack, Gavin. Resistant Islands: Okinawa Confronts Japan and the United States. Bowman & Littlefield (2012) ISBN 1442215623 -

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Amami Islands

The Amami Islands (奄美群島, Amami-guntō) is an archipelago in the Satsunan Islands, which is part of the Ryukyu Islands, and is southwest of Kyushu. Administratively, the group belongs to Kagoshima Prefecture, Japan. The Geospatial Information Authority of Japan and the Japan Coast Guard agreed on February 15, 2010, to use the name of Amami-guntō (奄美群島) for the Amami Islands. Prior to that, Amami-shotō (奄美諸島) was also used. The name of Amami is probably cognate with Amamikyu (阿摩美久), the goddess of creation in the Ryukyuan creation myth.

Kumage Subprefecture

Kumage Subprefecture (熊毛支庁, Kumage-shichō) is a subprefecture of Kagoshima Prefecture, Japan. The subprefectural office is located in Nishinoomote.

It includes the following cities and towns on the Ōsumi Islands:

Kumage Subprefecture

Nishinoomote (city on Tanegashima and Mageshima)

Nakatane (town on Tanegashima)

Minamitane (town on Tanegashima)

Yakushima Office

Yakushima (town on Yakushima and Kuchinoerabujima)

List of islands by name (M)

This article features a list of islands sorted by their name beginning with the letter M.

List of islands in the East China Sea

Islands in the East China Sea include:

Matsu Islands (29.61 km²)

Peikan (Beigan)

Kaoteng (Gaodeng)

Nankan (Nangan)

Tungyin (Dongyin)

Hsiyin (Xiyin)

Liang Island

Chukuang (Jyuguang)

Tungchu (Dongjyu, Dongquan)

Hsichu (Xijyu, Xiquan)


Ryukyu Islands (4,597.68 km²—Daitō Islands excluded)

Satsunan Islands

Ōsumi Islands:

Tanegashima, Yaku, Kuchinoerabu, Mageshima

Takeshima, Iōjima, Kuroshima

Tokara Islands: Kuchinoshima, Nakanoshima, Gajajima, Suwanosejima, Akusekijima, Tairajima, Kodakarajima, Takarajima

Amami Islands: Amami Ōshima, Kikaijima, Kakeromajima, Yoroshima, Ukeshima, Tokunoshima, Okinoerabujima, Yoronjima


Okinawa Islands: Okinawa Island, Kume, Iheya, Izena, Aguni, Ie (Iejima), Iwo Tori Shima (Iōtorishima)

Kerama Islands: Tokashiki, Zamami, Aka, Geruma

Sakishima Islands

Miyako Islands: Miyakojima, Ikema, Ōgami, Irabu, Shimoji, Kurima, Minna, Tarama

Yaeyama Islands: Iriomote, Ishigaki, Taketomi, Kohama, Kuroshima, Aragusuku, Hatoma, Yubujima, Hateruma, Yonaguni

Senkaku Islands (7 km²)

Uotsurijima, Kuba Jima, Taisho Jima, Kita Kojima, Minami Kojima, Oki-no-Kita-Iwa, Oki-no-Minami-Iwa, Tobise

Zhoushan Archipelago (1,440.12 km²)

Zhoushan Island

Daishan Island

Liuheng Island

Jintang Island

Zhujiajian Island

Qushan Island

Mount Putuo

Jeju Island (1,849 km²)


Pengjia Islet (1.14 km²)Total land area: 7,924.55 square kilometres

List of islands of Japan

Japan has 6,852 islands. Approximately 430 are inhabited. Japan is the largest island country in East Asia and the fourth largest island country in the world. Here's a list of islands of Japan.

Nishinoomote, Kagoshima

Nishinoomote (西之表市, Nishinoomote-shi) is a city located on the island of Tanegashima, in Kagoshima Prefecture, Japan.

As of June 2013, the city has an estimated population of 16,418 and a population density of 79.8 persons per km². The total area is 205.75 km².

Ryukyu Islands

The Ryukyu Islands (琉球諸島, Ryūkyū-shotō), also known as the Nansei Islands (南西諸島, Nansei-shotō, lit. "Southwest Islands") or the Ryukyu Arc (琉球弧, Ryūkyū-ko), 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 islands, fall under the cultural sphere of the Kyushu region of Japan; the people are ethnically Japanese and speak a variation of the Kagoshima dialect of Japanese. The Amami, Okinawa, Miyako, and Yaeyama Islands have a native population collectively called the Ryukyuan people, named for the former Ryukyu Kingdom that ruled them. The varied Ryukyuan languages are traditionally spoken on these islands, and the major islands have their own distinct languages. In modern times, the Japanese language is the primary language of the islands, with the Okinawan Japanese dialect prevalently spoken. The outlying Daitō Islands were uninhabited until the Meiji period, when their development was started mainly by people from the Izu Islands south of Tokyo, with the people there speaking the Hachijō language.

Administratively, the islands are divided into Kagoshima Prefecture (specifically the islands administered by Kagoshima District, Kumage Subprefecture/District, and Ōshima Subprefecture/District) in the north and Okinawa Prefecture in the south, with the divide between the Amami and Okinawa Islands, with the Daitō Islands part of Okinawa Prefecture. The northern (Kagoshima) islands are collectively called the Satsunan Islands, while the southern part of the chain (Okinawa Prefecture) are called the Ryukyu Islands in Chinese.

Satsunan Islands

The Satsunan Islands (薩南諸島, Satsunan-shotō) is a geopolitical name for a group of islands that forms the northern part of the Ryukyu Islands. The whole island group belongs to Kagoshima Prefecture, Japan.

Ōsumi Islands

The Ōsumi Islands (大隅諸島, Ōsumi-shotō) is an archipelago in the Nansei Islands, and are the northernmost group of the Satsunan Islands, which is in turn part of the Ryukyu Archipelago. The chain extends from the southern tip of Kyushu to Yakushima. Administratively, the group belongs within Kagoshima Prefecture, Japan.

Ōsumi Islands


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