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21 Aug, 2019
By, Wikipedia
Akaigawa Caldera
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.
Inner: Akaigawa Caldera
Outer:
Yoichigawa Caldera
See also
Akaigawa, Hokkaido