Nasu

Japan - Honshu

SUMMARY:

Type: composite
Activity: active
Last Eruption: 1963 AD
Rock Type: ?
Eruptive Volume: ? cu km
Location Map from Xerox PARC
Latitude: 37.12 N
Longitude: 139.97 E

GEOLOGIC HISTORY

The Nasu volcano group consists of a N-S cluster of stratovolcanoes and lava domes at the N end of the Kanto plain. Nasu volcanics date back at least 350,000 years. The youngest dome, Chausu-dake, is late Holocene in age.

Historic Activity: Chausu-dake has had several severe explosive eruptions since its first historical eruption in the late 14th century.

Recent Activity:

  • Two earthquake swarms occurred during early September 1985.
  • High seismicity was recorded on July 14, 1996 with a total of 14 earthquakes.

Data Sources

  • Smithsonian's SEAN Bulletin (V. 10, No. 10)
  • Global Volcanism Network (V. 21, No. 7).

ADDITIONAL INFORMATION

Last Update: 2/27/00