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The U.S. Geological Survey's Cascades Volcano Observatory strives to serve the national interest by helping people to live knowledgeably and safely with volcanoes in Washington, Oregon, and Idaho.
Very High Threat Potential 1
Crater Lake
Glacier Peak
Mount Baker
Mount Hood
Mount Rainier
Mount St. Helens
Newberry
Three Sisters
High Threat Potential 1
Mount Adams
Moderate Threat Potential 1
Mount Bachelor
Low to Very Low Threat Potential 1
Belknap
Black Butte Crater Lava Field
Blue Lake Crater
Cinnamon Butte
Craters of the Moon Volcanic Field
Davis Lake Volcanic Field
Devils Garden Lava Field
Diamond Craters Volcanic Field
Hell's Half Acre Lava Field
Indian Heaven Volcanic Field
Jordan Craters Volcanic Field
Mount Jefferson
Sand Mountain Volcanic Field
Wapi Lava Field
West Crater Volcanic Field
USGS Cascades Volcano scientists listen to and watch volcanoes using a variety of equipment. Seismometers detect earthquakes, GPS receivers detect ground motion, "sniffers" detect volcanic gas, and staff innovate new equipment to solve unique activity detection needs.
Volcanic activity in the Cascade Range can produce many types of volcano hazards. Tall and snow-covered mountains can be hazardous even without a change in volcanic activity.
