Okinoerabujima is isolated from the other Amami islands, and is located in between Tokunoshima and Yoronjima, approximately south of the southern tip of Kyūshū and north of Okinawa. The island is an elevated coralline island with a length of approximately and width of, with Mount Ōyama at above sea level at its highest peak. In the eastern part of the island is an extensive limestone cave system, one of the largest in Asia. The coast of the island is surrounded by a coral reef.
History
It is uncertain when Okinoerabujima was first settled. It was ruled by the Aji nobility who built numerous gusuku fortifications from the 8th century onwards. From 1266 it was part of Hokuzan, and from 1422 the Ryukyu Kingdom. The island was invaded by samurai from Satsuma Domain during the 1609 Invasion of Ryukyu and its incorporation into the official holdings of Satsuma was recognized by the Tokugawa shogunate in 1624. Satsuma rule was harsh, with the inhabitants of the island reduced to serfdom and forced to raise sugar cane to meet high taxation, which often resulted in famine. The island was subordinate to Tokunoshima from 1616 to 1690, when an independent daikansho was established. Throughout the Satsuma period, the island was used as a prison settlement, especially for political offenders, including many members of the Ryukyuan royal family. Saigō Takamori was exiled to Okinoerabujima from 1862 to 1864. After the Meiji Restoration the island was incorporated into Ōsumi Province and later became part of Kagoshima Prefecture. Following World War II, along with the other Amami Islands, it was occupied by the United States until 1953, at which time it reverted to the control of Japan. In September 1977, a massive typhoon devastated the island, which experienced winds in excess of for two hours as the typhoon passed by. Nearly two-thirds of the homes across the island were damaged or destroyed by the storm and 73 people were injured. Most of the injuries across the island were caused by collapsing buildings.
Climate
Okinoerabujima has a humid subtropical climate with very warm summers and mild winters. Precipitation is significant throughout the year, but is somewhat lower in winter. The island is subject to frequent typhoons.
Fauna
Okinoerabujima is home to several rare species of reptiles and insects endemic to the island itself, or more generally to the Ryukyu Islands. The island is one of fewer locations where swimming with whales is legally approved.
Economy
With moderate rainfall and a warm climate, the island is suitable for agriculture. Main crops include sweet potatoes, sugar cane and floriculture. Brown sugar refining and the production of distilled shōchū liquor is the major industry. The island is not a major tourist destination, unlike many in the Amami archipelago.
Transportation
The port of Wadomari, located in the town of the same name, has regular ferry services to Okinawa and Kagoshima. The smaller port of China, in the town of China, has ferries to Kagoshima and other of the Amami islands. Okinoerabu Airport, in Wadomari, is located in east side of the island. Flights connect the island to Kagoshima, Tokunoshima, Amami, and Okinawa.