Nigorikawa

sopka (bez známé erupce za posledních ~12 000 let), Japan, Northwestern Pacific Volcanic Regions

Kde

Japan, Northwestern Pacific Volcanic Regions

Typ (GVP)

Caldera

Nadmořská výška

356 m

Poloha

42,120°, 140,450°

The Mori geothermal field is located in the late-Pleistocene Nigorikawa caldera in SW Hokkaido. The small 3-km-wide caldera along the shores of Uchiura Bay WNW of Komagatake volcano, was formed during a major explosive eruption about 12,000 years ago. The caldera-forming eruption included the emplacement of pyroclastic-fall and -surge deposits and pyroclastic-flow deposits that extend north and west to the Pacific coast. The flat-bottomed caldera floor is intersected by roads and houses of the town of Nigorigawa, and a river of the same name drains the caldera to the NE through a notch in the caldera rim.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.