Mount Ōkueyama
Mount Ōkueyama (大崩山), also known as Mount Ōkue, is a Volcanic Mountain on the Japanese island of Kyushu. Part of an ancient volcanic formation known as the Okueyama Volcano-plutonic Complex, Mount Ōkueyama (and possibly several nearby volcanoes) experienced a massive eruption ~13.7 million years before present (13.7 Ma); it has been postulated that this eruption measured 8 on the Volcanic Explosivity Index, making the Ōkueyama eruption larger than any eruption in recorded history. The volcano is now considered to be extinct.
In 1990, the area around the mountain was designated a Forest Ecosystem Reserve, and In 2017 Mount Ōkueyama was declared part of a UNESCO biosphere reserve, the Sobo, Katamuki and Okue Biosphere Reserve.
The area is managed by the Forestry Agency of Japan.
See also
References
- ^ Takahashi, Masaki. Subsurface Structure of Miocene Large-scale Caldera Cluster: Illustrated Descriptions of Geology of the Okueyama Volcano-plutonic Complex, Southwest Japan. Received November 16, 2013 URL: https://www.chs.nihon-u.ac.jp/institute/nature/kiyou/2014/pdf/2_11.pdf
- ^ Daisuke, Miura; Yutaka, Wada (2007). "Middle Miocene ash-flow calderas at the compressive margin of southwest Japan arc: Review and synthesis". The Journal of the Geological Society of Japan. 113 (7): 283–295. doi:10.5575/geosoc.113.283. Retrieved 8 August 2019.
- ^ "Area around Mt. Sobosan, Mt. Katamukiyama, and Mt. Okueyama". Protected Planet. Retrieved 2019-08-07.
- ^ "23 new sites added to UNESCO's World Network of Biosphere Reserves". UNESCO. 2017-06-14. Retrieved 2019-08-07.
- ^ "Two sites in Japan to be added to UNESCO biosphere reserves". The Japan Times Online. 2017-06-14. ISSN 0447-5763. Retrieved 2019-08-07.
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