Mount Ontake in spring
|Elevation||3,067 m (10,062 ft)|
|Prominence||1,712 m (5,617 ft)|
100 famous mountains in Japan
|Location||Gifu and Nagano, Chūbu region, Japan|
|Topo map||Geographical Survey Institute, 25000:1 御嶽山, 50000:1 御嶽山|
|Last eruption||September to October 2014|
Ontake is a major sacred mountain, and following older shamanistic practices, actors and artists have gone to the mountain to put themselves into trances in order to get divine inspiration for their creative activities.
There were minor non-explosive (VEI0) phreatic eruptions in 1991 and 2007.
On Saturday, September 27, 2014, at around 11:53 a.m. Japan Standard Time (UTC +9), the volcano erupted with a VEI of 3 or 4. There were no significant earthquakes that might have warned authorities in the lead up to the phreatic eruption—caused by ground water flashing to steam in a hydrothermal explosion. The Mount Ontake volcano eruption was an extremely rare phenomenon which made it impossible to take precautionary measures. At least 40 people were injured, and another 32 were believed to be missing. The Japan Self-Defense Forces began carrying out helicopter searches for missing people after the eruption. Ontake's last major eruption was in 1979 and there has been no fatalities from Japanese volcanoes since 1991.
On October 7, the total of confirmed deaths counts 56.
Mount Ontake and a fumarole
- 100 Famous Japanese Mountains
- List of mountains in Japan
- List of Ultras of Japan
- List of volcanoes in Japan
- Ontake Prefectural Natural Park
- Three-thousanders (in Japan)
- "Mountains altitude list in Japan(Gifu prefecture)" (in Japanese). Geospatial Information Authority of Japan. Retrieved December 18, 2010.
- "Japan Ultra-Prominences". Peaklist.org. Retrieved March 20, 2013.
- "On-take". Global Volcanism Program, Smithsonian Institution. http://www.volcano.si.edu/world/volcano.cfm?vnum=0803-04%3D.
- Bernbaum, Edwin (1997). Sacred Mountains of the World. Berkeley & Los Angeles: University of California Press.
- 御嶽山 有史以降の火山活動 (in Japanese). Japan Meteorological Agency. Retrieved 2014-09-29.
- "御嶽山が噴火 火口から４キロ程度は警戒を". NHK. September 27, 2014. Retrieved September 27, 2014.
- "御嶽山噴火、７人が灰に埋まる 山に残留４４人 警察庁". Asahi Shimbun. Retrieved September 27, 2014.
- "3 buried under volcanic ash". NHK. Retrieved September 27, 2014.
- "Experts warn of further eruptions". NHK. 28 September 2014.
- "Japan volcano Ontake an extremely rare eruption". Australian Geographic. 29 September 2014.
- "Japanese troops head for volcano after eruption to search for missing climbers". Chatham Daily News. Ontario. 27 September 2014. Retrieved 29 September 2014.
- "3 more bodies found on Mt. Ontake as search resumes, toll at 54". Mainichi Shimbun. Retrieved October 5, 2014.
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