Nigorigawa

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Nigorigawa volcano

caldera, hydrothermal field 356 m / 1,168 ft
Hokkaido, Japan, 42.12°N / 140.45°E
Current status: dormant (1 out of 5)

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Typical eruption style: explosive
Nigorigawa volcano eruptions: ca. 12,000 years ago
Last earthquakes nearby:

Time	Mag. / Depth	Distance	Location
Sun, 5 May
Sun, 5 May 14:02 UTC	M 1.3 / 13 km	42 km	北海道南西沖 (Megathrust earthquake)
Sun, 5 May 01:06 UTC	M 1.2 / 9 km	25 km	内浦湾 (Uchiura Bay)
Sat, 4 May
Sat, 4 May 23:51 UTC	M 1.4 / 13 km	45 km	北海道南西沖 (Megathrust earthquake)
Sat, 4 May 22:09 UTC	M 0.8 / 13 km	31 km	津軽海峡 (Tsugaru Strait)
Sat, 4 May 21:58 UTC	M 1.1 / 14 km	32 km	津軽海峡 (Tsugaru Strait)

View all recent quakes

Nigorigawa volcano is a geothermal field in the 3 km diameter Nigorikawa caldera on the shores of Uchiura Bay, southern Hokkaido, Japan. The caldera was formed during a major explosive eruption ca. 12,000 years ago.

Background:

The caldera-forming eruption of Nigorikawa volcano produced pyroclastic-fall and -surge deposits and pyroclastic-flow deposits that extend northward and westward to the Pacific coast. The town of Nigorigawa is located on the bottom of the flat caldera floor. The Nigorigawa river drains the area through a gap of the NW caldera rim.

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