Akaigawa Caldera

Elevation725 m (2,379 ft)^[1][2]

ListingVolcanoes in Japan

Coordinates43°05′00″N 140°49′00″E / 43.0833°N 140.8167°E / 43.0833; 140.8167^[1]

Native name赤井川カルデラ (Japanese)

Akaigawa Caldera
Akaigawa Caldera Location in Japan Show map of Japan Akaigawa Caldera Location in Hokkaido Show map of 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 / 43.0833; 140.8167[1]
Naming
Native name	赤井川カルデラ (Japanese)
Geography
Country	Japan
Prefecture	Hokkaido
Geology
Mountain type	Stratovolcano[2]
Rock type(s)	Andesite, Dacite and Rhyolite[1]
Last eruption	Pleistocene[2]

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]