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News
Thu, 18 Dec 2014, 16:02
Witte stoom pluimen werden waargenomen tijdens de afgelopen week. JMA verslagen van seismische activiteit bleef laag, maar onderhoudt alarmniveau 3, zoals plotselinge freatische explosies zich opnieuw kunnen voordoen. ... Lees alle
Fri, 14 Nov 2014, 07:48
JMA gemeld dat bewolking vaak visuele waarnemingen van Ontakesan tijdens de 5-11 November voorkomen; witte pluimen steeg van 200-300 m boven de rand van de krater en dreef NE, E en SE. Lees alle
 

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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