Most active volcanoes in the U.S. are in Hawaii, Alaska, and the Pacific Northwest. The danger area near a volcano covers about a 20-mile radius. Some danger, though, may exist 100 miles or more away.

Visit these resources to find out what you need to know about volcanic eruptions.

Learn the many hazards of volcanic eruptions and what you need to be aware of. Learn how to prepare an emergency supply kit and family emergency plan. Learn how to find shelter and information after. (Ready.gov)

Volcano Preparedness
Do you live in a volcano area? If so, you need to know about your local warning systems and emergency plans. Learn the how to prepare before an event and what to do during, both indoors and outdoors. You can also find out how to protect yourself during ashfall. (American Red Cross)

Get information about how to prepare for a volcanic eruption and how the EPA responds. You can also learn about the health and environmental impacts that follow an eruption. (Environmental Protection Agency)

Volcanoes - What You Should Know
Get advice on how to protect yourself and your family after an eruption. There are also links to information about other hazards that can occur with an eruption. (Centers for Disease Control and Prevention)

Volcanic Ash
Learn what volcanic ash is, what it can do, and how to prevent damage. Get tips on what actions to take for clean-up and disposal. You can also view brochures from the International Volcanic Health Hazard Network (IVHHN). (U.S. Geological Survey)

Visit these pages on our site to learn more about other hazards that can occur with a volcanic eruption: earthquake, fire, flood, landslidetsunami or wildfire.

Last Updated: 09/17/2021