Mt. Adams Volcano

SUMMARY

Type: stratovolcano
Activity: dormant
Last Eruption: about 3500 yrs ago
Rock Type: basalt, andesite, dacite to rhyodacite
Eruptive Volume: 300 cu km
Location Map from Xerox PARC
Latitude: 46.20 N
Longitude: 121.50 W

Geologic Background:

Mount Adams, one of the largest volcanoes in the Cascade Range, dominates the Mount Adams volcanic field in Washington's Skamania, Yakima, Klickitat, and Lewis counties and the Yakima Indian Reservation of south central Washington (1,250 km2). At Adams, large landslides and lahars that need not be related to eruptions probably pose the most destructive, far-reaching hazard.

Historic Activity:

•  None

Recent Activity:

•  None

Data Sources:

• Global Volcanism Network (V. 22, No. 9)

ADDITIONAL INFORMATION

• Link to Global Volcanism Network's Mt. Adams Information
• Link to U.S.G.S. - CVO's Mt. Adams Info
• Link to VolcanoWorld's Mt. Adams Info

Last Update: 1/8/01