Ontake-san vulkaan uitbarstingen
complexe vulkaan 3063 m / 10,049 ft
Honshu, Japan, 35.89°N / 137.48°E
Eruption lijst: 27 Sep 2014, 2007, 1979-80, 774 AD
1979 first historic eruption
Around 5:00 on 28 October 1979 the first historic eruption of On-take volcano occurred from a fissure on the southwestern slope of the main peak, Kengamine.
The eruption produced a tephra column of 1500 meters and there was ashfall in Maebashi City 150 km away. A 30 m diameter crater and 9 small craters on a NW-SE lline were formed above the eruptive fissure.
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