Aira Caldera

Aira Caldera

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. Eruption of voluminous pyroclastic flows accompanied the formation of the 17 × 23 km-wide Aira caldera. Together with a large pumice fall, these amounted to approximately 400 km³ of tephra. The major city of Kagoshima and the 16,000-year-old Sakurajima volcano lie 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. ... more on Wikipedia

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