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Akaigawa Caldera 
Summary
Akaigawa Caldera (赤井川カルデラ, Akaigawa karudera) is a caldera located in Hokkaido Prefecture, Japan. It was active anywhere between 1.7 and 1.3 million years ago.[2]
| Akaigawa Caldera | |
|---|---|
  Akaigawa Caldera Location in Japan  Akaigawa Caldera Location in Hokkaido | |
| Highest point | |
| Elevation | 725 m (2,379 ft)[1][2] |
| Listing | Volcanoes in Japan |
| Coordinates | 43°05′00″N 140°49′00″E / 43.0833°N 140.8167°E[1] |
| Naming | |
| Native name | 赤井川カルデラ (Japanese) |
| Geography | |
| Country | Japan |
| Prefecture | Hokkaido |
| Geology | |
| Mountain type | Stratovolcano[2] |
| Type of rock | Andesite, Dacite and Rhyolite[1] |
| Last eruption | Pleistocene[2] |
Outer: Yoichigawa Caldera
See also edit
References edit
- ^ a b c "Akaigawa Caldera". Geological Survey of Japan. Retrieved 2023-04-19.
- ^ a b c d "Akaigawa". Global Volcanism Program. Smithsonian Institution. Retrieved 2021-06-25.