About U.S. Volcanoes

Mount St. Helens erupting on July 22, 1980

There are over 160 U.S. volcanoes that have erupted in the past 10,000 years. Listed below are many of our monitored volcanoes with links to additional information. Over the next few years, we will be updating our volcano pages to provide links to images, publications, hazard assessments, and monitoring data.

Alphabetical list of U.S. Volcanoes