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Aira Caldera
Aira Caldera
Kyūshū region Mount sakurajima was 2 volcanoes. With eruptions it grew to form 1. people live there Aira Caldera is a gigantic volcanic caldera in the south of the island of Kyūshū, Japan. The caldera was created by a massive eruption, approximately 22,000 years ago. The major city of Kagoshima, Kagoshima and the 13,000 year old Sakurajima volcano lies within the caldera. Sakura-jima, one of Japan’s most active volcanoes, is a post-caldera cone of the Aira caldera at the northern half of Kagoshima Bay. Eruption of voluminous pyroclastic flows accompanied formation of the 17 x 23 km wide Aira caldera at the eruption 22,000 years ago. Together with a large pumice fall, these amounted to more than 400 km3 of tephra (VEI 7).
Space radar image of Sakurajima. The volcano lies within the bay formed by the Aira caldera
References
• Aramaki, Shigeo (1984). "Formation of the Aira Caldera, Southern Kyushu, ∼22,000 Years Ago". Journal of Geophysical Research 89 (B10): 8485–8501. doi:10.1029/JB089iB10p08485. http://www.agu.org/pubs/crossref/1984/ JB089iB10p08485.shtml. Coordinates: 31°40′01″N 130°40′01″E / 31.667°N 130.667°E / 31.667; 130.667
Retrieved from "http://en.wikipedia.org/wiki/Aira_Caldera" Categories: Volcanoes of Kyūshū, VEI-7 volcanoes, Volcanic calderas of Japan, Kagoshima geography stubs
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From Wikipedia, the free encyclopedia
Aira Caldera
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