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, also known as or , is one of the Satsunan Islands, usually classed with the Ōsumi Islands, belonging to Kagoshima Prefecture, Japan. Along with Takeshima and Kuroshima, it makes up the three-island village of Mishima, Kagoshima Prefecture, Japan. The island, 11.65 km² in area, has a population of 142 persons. ==Geography== Iōjima is one of the Ōsumi islands, and is located south of Kagoshima. The island has an area of approximately with a length of in length from east to west and from north to south. Iōjima is of volcanic origin, and is the northern edge of the Kikai Caldera, a stratovolcano rising from the ocean floor to above sea level at its highest peak (Mount Iōdake). Kikai Caldera is ranked class A for volcanic activity. It is constantly erupting, emitting massive amounts of sulfur dioxide which causes damage to agricultural products. Hot springs high in iron concentration from the port bottom gush and due to contact with oxygen, the port waters change to a reddish-brown color. Due to the sulfur, the sea area around the island is yellow in color. This gave rise to the name "Sulfur Island" (Iōjima). The climate of Iōjima is classified as subtropical, with a rainy season from May through September. Shōwa Iōjima, a small uninhabited island, is located just offshore to the north. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Iōjima (Kagoshima)」の詳細全文を読む スポンサード リンク
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