Ata Caldera
| Ata Caldera | |
|---|---|
Postulated limits of the Ata Caldera have varied over time in the scientific literature. Some recent definitions and evidence would include most of both of the indicated areas in this map. | |
| Highest point | |
| Peak | Mount Kaimon, 31°10′48″N 130°31′42″E / 31.18000°N 130.52833°E |
| Elevation | 924 m (3,031 ft) |
| Coordinates | 31°24′N 130°38′E / 31.40°N 130.64°E |
| Dimensions | |
| Length | 25 km (16 mi) NS |
| Width | 15 km (9.3 mi) EW |
| Naming | |
| Native name | 阿多カルデラ (Japanese) |
| Geography | |
| Country | Japan |
| State | Kagoshima Prefecture |
| Region | Ibusuki, Kagoshima, Kimotsuki District, Tarumizu |
| Geology | |
| Rock age | Pleistocene (240,000 years ago) onwards |
| Mountain type(s) | Caldera Somma volcano |
| Last eruption | 885 CE |
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Ata Caldera (阿多カルデラ, Ata karudera), containing the Ata North Caldera, Mount Kaimon and Ikeda Caldera amongst other volcanoes, is a massive, ill defined, mostly submerged volcanic caldera associated with the southern portions of Kagoshima Bay.