Mount Hakone
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Mount Hakone (箱根山 Hakoneyama?) is a complex volcano in Kanagawa Prefecture, Japan that is truncated by two overlapping calderas, the largest of which is 10 × 11 km wide. The calderas were formed as a result of two major explosive eruptions about 180,000 and 49,000–60,000 years ago. Lake Ashi lies between the southwestern caldera wall and a half dozen post-caldera lava domes that arose along a southwest–northeastern trend cutting through the center of the calderas. Dome growth occurred progressively to the south, and the largest and youngest of them, Kami-yama, forms the high point of Hakone. The calderas are breached to the east by the Haya-kawa canyon. Mount Ashigara is a parasitic cone.[3]
The latest magmatic eruptive activity at Hakone occurred 2,900 years ago. It produced a pyroclastic flow and a lava dome in the explosion crater, although phreatic eruptions took place as recently as the 12–13th centuries AD.[4]
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Wikimedia Commons has media related to Hakone Mountains. |
- Hakoneyama - Japan Meteorological Agency (Japanese)
- Hakoneyama: National catalogue of the active volcanoes in Japan PDF - Japan Meteorological Agency
- Hakone Volcano Group - Geological Survey of Japan
- Hakoneyama: Global Volcanism Program - Smithsonian Institution
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