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Mount St. Helens 40th Anniversary
Forty years ago, on May 18th, 1980, Mount St. Helens produced the largest observed eruption in the coterminus United States. This eruption had profound impacts on human life and the science of volcanology, as well as on hazard preparedness, communication, and forecasting.

Events & Resources

The 1980 Eruption

Science of Volcanology

Hazard Communication

Spotlight Video: Interview with Tina Neal
Mount St. Helens - May 18th, 1980
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Volcano Moments with Dr. Janine KrippnerSubscribeMount St. Helens 40th Anniversary: The Interagency Response to EruptionsLearn more
USGSSubscribeMount St. Helens: May 18, 1980Learn more