- Home
- /
- Global Volcanoes Database
- /
- Japan Volcanoes
- /
- Mount Asama
Mount Asama is a complex volcano situated in the main island of Japan. The most active volcano in Honshu stands 2,568 metres above sea level. Built up from non-alkali mafic and pyroclastic volcanic rocks, it is one of the 100 popular Japanese mountains.
Location: | Central Honshu, Japan |
Coordinates: | 36.406450, 138.522344 |
Volcano Type: | Complex volcano |
Mount Asama's location
Mount Asama's Eruptive History
1783 | May - Plinian eruption. One of Japan's largest eruptions in recorded history. This eruption built a new cone, rained pumice and caused massive pyroclastic flows. Activity ended post an enormous explosion that could be heard 300km away. 1400 people died as a direct result of the eruption, however a further 20,000 from famine |
1949-59 | Ongoing eruptive phase. Smoke observed rising from the crater on multiple occasions |
1961 | Eruption in Nov - eruption column observed |
1973 | A number of tremors were recorded before a powerful eruption occurred with lava bombs falling around the crater. |
1982-83 | Large explosion producing an ash plume to 5000m. A small pyroclastic flow was produced |
1995 | Series of earthquakes were recorded. No eruption occurred. |
2004 | After a long period of minor activity, a vulcanian eruption occurred creating a plume to 5000m. Ballistic blocks were ejected. |
2008 | Small series of eruptions producing minor ash plumes |
2009 | Following high gas levels, an eruption occurred with the accompanying plume reaching 2000m. Light ash fell on the city of Tokyo. |
If you'd like to contribute to this page, please contact us
No monitoring of this volcano available.
If you'd like to contribute to this page, please contact us
- Home
- /
- Global Volcanoes Database
- /
- Japan Volcanoes
- /
- Mount Asama