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Yatsugatake volcano

Stratovolcano(es) 2899 m / 9511 ft
Honshu, Japan, 35.97°N / 138.37°E
Current status: (probably) extinct (0 out of 5) | Reports
Yatsugatake volcano books
Typical eruption style: unspecified
Yatsugatake volcano eruptions: None during the past 10,000 years
Less than few million years ago (Pleistocene) No recent earthquakes
TimeMag. / DepthDistanceLocation


The older Yatsugatake volcano was active about 1 million years ago and the younger was active about 0.2 million years ago (Nakano et al., 2001). This complex of N-S-trending stratovolcanoes extends for about 10 km and is also known as Minami Yatsugatake ("Southern Eight Peaks") (Matsuhisa and Kurasawa, 1983). Both ends of the complex produced volcanic dry avalanche deposits (sector collapses of a volcanic cone), ranging from 0.27 to 9.0 km3 in volume(Tadahide, 1983). The volcanic rocks of the northern end generally consist of hornblende and pyroxene dacites, whereas those at the southern end are composed of olivine and pyroxene andesites. The volcanic products also contain xenoliths derived from a diverse assortment of basement rocks (Matsuhisa and Kurasawa, 1983). Extensive geochemical data is available from Matsuhisa and Kurasawa (1983).
Source: Smithsonian / GVP volcano information

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