OREGON STATE UNIVERSITY

Towada

Latitude (dd): 
40.47
Longitude (dd): 
140.92
Elevation (m): 
1159
Country: 
Japan
State (Province, etc): 
Honshu
Type: 
Caldera

 


Towada is a stratovolcano with a summit caldera. Six Holocene eruptions have been dated by carbon-14 and tephrochronology. Three of these eruptions (7550BC, 6650BC, and 3440 BC) were very large (at least VEI=5). The only historic eruption, in 915 AD, was explosive, very large, and generated pyroclastic flows. It also produced a dome and lava flows. The eruption caused damage but not fatalities. This photo shows the view across the lake that fills the caldera. Photographs courtesy of and copyrighted by Mike Lyvers.


Views along the caldera wall.


Views along the caldera wall.

 


Sources of Information:

Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.