Mt. Asama（浅間山, Asamayama）
| Elevation | 2568 m |
|---|---|
| Classification | 100 Famous Mountains of Japan |
| Location | Nagano Pref. (長野県 北佐久郡) |
| Coordinates | 36.40000, 138.51667 |
Highlights of Mt. Asama
- Selected as one of the 100 Famous Mountains of Japan
- Elevation 2568 m
- Located in Nagano Pref.
Weekly weather (reference)
About Mt. Asama
Mount Asama (浅間山, Asama-yama) is an active stratovolcano in central Honshū, the main island of Japan. The volcano is the most active on Honshū. The Japan Meteorological Agency classifies Mount Asama as rank A. It stands 2,568 metres (8,425 ft) above sea level on the border of Gunma and Nagano prefectures. It is included in 100 Famous Japanese Mountains.
Geology
Mount Asama sits at the conjunction of the Izu–Bonin–Mariana Arc and the Northeastern Japan Arc. The mountain is built up from non-alkali mafic and pyroclastic volcanic rocks dating from the Late Pleistocene to the Holocene. The main rock types are andesite and dacite.
Scientists from the University of Tokyo and Nagoya University completed their first successful imaging experiment of the interior of the volcano in April 2007. By detecting sub-atomic particles called muons as they passed through the volcano after arriving from space, the scientists were able gradually to build up a picture of the interior, creating images of cavities through which lava was passing deep inside the volcano.
A University of Tokyo volcano observatory is located on the mountain's east slope. Volcanic gas emissions from this volcano are measured...