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Ontake-san volcano
complex volcano 3063 m / 10,049 ft
Honshu, Japan, 35.89°N / 137.48°E
Current status: normal or dormant (1 out of 5) Ontake-san volcano eruptions:
27 Sep 2014, 2007, 1979-80, 774 AD
Typical eruption style:
explosive

Ontake-san volcano news & activity updates:

Ontake-san volcano (Honshu, Japan) activity update

Fri, 7 Nov 2014, 13:16
13:16 PM | BY: T
White plumes rose 100-300 m above the crater rim and drifted NE and SE during 29-30 October and 4 November. The Alert Level remained at 3 (on a scale of 1-5).
(Smithsonian / USGS Weekly Volcanic Activity Report 29 October-4 November 2014)

Previous news

Fri, 24 Oct 2014, 14:59
The volcano continues to produce white steam plumes rising a few 100 m above the crater. According to press articles, 7 people are still missing from the 27 Sep eruption, but search and rescue operations are being suspended until springtime because of the winterly conditions. The Alert Level remained at 3 (on a scale of 1-5). ... read all
Sat, 4 Oct 2014, 21:52
The volcano continues to emit plumes of steam and possibly some ash Tokyo VAAC reports. read all
Wed, 1 Oct 2014, 15:21
The death toll from Saturday's powerful, and deadly explosion of the volcano has now climbed to 48, press reports. The eruption was a sudden, unexpected (and unpredictable) phreatic explosion, i.e. caused by sudden evaporation of overheated water in the hydrothermal system of the volcano. ... read all
Sun, 28 Sep 2014, 06:52
In a screen grab from a YouTube video, hikers flee from Ontake on Saturday, Sept. 27, 2014, in Japan.
Yesterday's eruption might have caused more than 30 fatalities, Japanese press reports. Most of them were apparently killed by heart and respiratory failure after inhaling ash when caught in the outer areas of a pyroclastic flow or ash cloud descending the mountain. ... read all
Sat, 27 Sep 2014, 20:59
Pyroclastic flow during Ontake volcano's eruption today (Asahi.com)
A large explosive eruption occurred at Japan's second highest volcano today at 11:56 local time. An explosion produced an ash plume that rose approx. 4 km and a large pyroclastic flow that swept down the southwestern flank. ... read all

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