Yake-dake

Japan - Honshu

SUMMARY:

Type: composite
Activity: active
Last Eruption: 1962 AD
Rock Type: andesite
Eruptive Volume: ? cu km
Location Map from Xerox PARC
Latitude: 36.22 N
Longitude: 137.58 E

GEOLOGIC HISTORY

Yake-dake rises above the popular resort of Kamikochi in the North Japan Alps of central Honshu. This andesitic stratovolcano includes a small lava dome at the summit. The small andesitic stratovolcano, one of several Japanese volcanoes named Yake-yama ("Burning Mountain"), was constructed astride a N-S-trending ridge between the older volcanoes of Warudani-yama and Shiratani-yama. A 300-m-wide crater is located the summit of Yake-dake, and explosion craters are found on the SE and northern flanks.

Historic Activity: Frequent small-to-moderate phreatic eruptions occurred primarily from summit craters during 1907-39 and from N-flank fissures in 1962-63. A large phreatic eruption in 1915 from the summit and SE flank caused mudflows that dammed the Azusa-gawa River, forming Lake Taisho-ike.

Recent Activity:

  • A hydrothermal explosion on Feb. 11, 1995, killed 2 people at a highway construction site, located in a geothermal area along the narrow Azusa-gawa River about 2 km SE of the summit. There were at least two explosions.

Data Sources

  • Global Volcanism Network (V. 20, No. 2).

ADDITIONAL INFORMATION

Last Update: 2/27/00