Mount Hakone - Kanagawa Japan
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S5280ft
N 35° 14.646 E 139° 01.221
54S E 319879 N 3901909
Owakudani crater is reached by the Hakone Ropeway from either Sounzan or Togendai. The region is still very hot from magma close to the surface, causing numerous hot springs and fumaroles.
Waymark Code: WM35RA
Location: Kanagawa, Japan
Date Posted: 02/15/2008
Views: 69
From the informational plaque on-site:
Owaduzawa (Owakudani) is and explosion crater created by a large-scale phreatic explosion about 3000 years ago. The crater still discharges fumarolic gas containing poisonous hydrogen sulfide and sulfur dioxide. The bedrock in the area is very fragile due to this fumarolic activity having caused landslides in the past
In 1910 there was an extensive landslide by heavy rain, sediment runoff attacking the banks of Hayakawa River causing a major disaster and many causalities. This side of the mountain continues to have frequent landslides and collapses since.
To prevent further landslide disasters, Kanagawa prefectural government has been undertaking contingency planning including erosion-control works and lining of mountainsides with stones, boring and anchoring work.
Volcano Type: Cinder Cone
Volcano Location: Island Arc
Year of most recent activity: -1000
Crater Visible?: yes
Geyser/Hot Spring Visible?: yes
Vent or Fumarole Visible?: yes
Caldera Visible?: Not Listed
Cone Visible?: Not Listed
Lava Dome Visible?: Not Listed
Lava Flow (Moving) Visible?: Not Listed
Lava Flow (Not Moving) Visible?: Not Listed
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