Akahoya eruption, Iōjima

Name: Akahoya eruption
Address: Iōjima, Japan

#3 among attractions in Iōjima

Nature, Natural attraction, Volcano

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Facts and practical information

The Akahoya eruption was the strongest known volcanic eruption of the Kikai Caldera in Kyūshū, Japan. It ejected about 150 cubic kilometres of volcanic material, giving it a '7' on the Volcanic Explosivity Index. ()

Local name: 鬼界アカホヤ火山灰 Coordinates: 30°47'20"N, 130°18'29"E

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Iōjima Japan

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Day trips

Akahoya eruption – popular in the area (distance from the attraction)

Nearby attractions include: Kikai Caldera, Mount Iō.

~0 ftN
Nature, Natural attraction, Volcano
Kikai Caldera, Iōjima
1 min walk • Kikai Caldera is a massive, mostly submerged caldera up to 19 kilometres in diameter in the Ōsumi Islands of Kagoshima Prefecture, Japan. It was the source of the Akahoya eruption, one of the largest eruptions during the Holocene.
~1770 ftNW
Nature, Natural attraction, Volcano
Mount Iō, Iōjima
9 min walk • Mount Iō also Mount Iwo is an active rhyolitic lava dome on Iōjima in Kagoshima Prefecture, Japan. It sits within the borders of the town of Mishima. The mountain is made up of non-alkali felsic rock and pyroclasitic flows.