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NewsFreitag, Mär 01, 2013
The latest bulletin of the Japan Meteorological Agency mentions that an increase in seismicity since January 11 near the intra-caldera dome Komagatake is beginning to worry scientists about a possible new activity. ...
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Hakone Vulkankomplexe Vulkan 1438 m / 4,718 ft
Honshu, Japan, 35.23°N / 139.02°E Aktueller Status: unruhig (2 von 5) Hakone Webcams / aktuelle Daten
Letztes Update: 1 Mär 2013
Typische Aktivität: phreatic explosions Ausbrüche des Hakone: 1170 AD ± 100 years (radiocarbon dated), 50 BC (?), 1050 BC (?), 1200 BC (?), 1400 BC ± 100 years, 3700 BC ± 100 years, 6000 BC ± 100 years Letzte Erdbeben in der Nähe:
The calderas are breached to the east by the Haya-kawa canyon. The scenic Lake Ashi (Ashinoko) was created by a phreatic eruption 3000 yeas ago, which followed the collapse of the NW flank of the largest and youngest of the lava domes, Kami-yama, and dammed the Haya-kawa valley. The last activity of Hakone volcano was ca. 800 years ago and consisted in phreatic explosions. Lake Ashi and other major thermal areas in the caldera are a tourist destination SW of Tokyo. Beschreibung:The Hakone volcano calderas were formed as a result of 2 major explosive eruptions about 180,000 and 49,000-60,000 years ago.Dome growth after the caldera formation occurred progressively to the south. The , forms the high point of Hakone. The latest magmatic eruption from Hakone was ca. 2900 years ago and produced a pyroclastic flow and a lava dome in the explosion crater. Phreatic eruptions have last occurred in the 12-13th centuries AD. Seismic swarms occurred at Hakone during the 20th century. (Source: Smithsonian / GVP volcano information) 1991 seismic swarm
On 22 April 1991, 300 earthquakes were recorded 5 km beneath the central part of the caldera, but no eruption has followed. |
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