Yokoate-jima
island in Kagoshima, Japan
Yokoate-jima (横当島) is an uninhabited volcanic island located in the Tokara Islands, part of the Kagoshima Prefecture, Japan.
Geography
Yokoate-jima is located 42 kilometres (23 nmi) south-southwest from Takarajima and 60 kilometres (32 nmi) northwest from Amami Ōshima
The island is formed by two smaller stratovolcanoes - Higashimine (東峰) to the east, with a maximum elevation of 494.8 metres (1,623 ft) and Nishimine (西峰) to the west, with a maximum elevation of 259 metres (850 ft). The only known volcanic activity on either peak was towards the end of the Edo period, around 1835 ± 30 years. The inside of both caldera are forested, whereas the outer slopes of both mountains is largely barren.
The local climate is classified as subtropical, with a rainy season from May through September.
Kaminonejima (上ノ根島) is another uninhabited island located approximately 2.4 kilometres (1.3 nmi) north of Yokoate-jima. It is another exposed portion of the caldera rim of the same stratovolcano as Yokoate-jima.
History
Yokoate-jima is surrounded by cliffs, making landing difficult. It does not appear to have ever had permanent human habitation. During the Edo period, Yokoate-jima was part of Satsuma Domain and was administered as part of Kawabe District.
The public source identifies “Yokoate-jima” as island in Kagoshima, Japan. This brief keeps that definition visible, then builds a research path around Yokoate-jima, island and Kagoshima.
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The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Jul 16, 2026. The linked authority identifier is Q4176126. Authority coordinates are 28.800, 128.983. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1835.
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This entry incorporates text from “Yokoate-jima” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.