is a gigantic volcanic caldera in the south of the island of Ky sh , 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 more than 400 km³ of tephra (VEI 7).

The major city of Kagoshima and the 13,000-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.

References

de:Aira-Caldera es:Caldera Aira fr:Caldeira d'Aira id:Kaldera Aira nl:Aira-caldera ja: pl:Aira pt:Aira (vulc o) ru: ( )