A tsunami is a series of waves caused by any large shift in an area of seawater. Earthquakes are the most frequent cause, but volcanic eruptions, landslides, undersea slumps, or meteorite strikes can also be a cause.

The resources below can help you learn about and prepare for a tsunami.

Find out how to protect yourself and your family before a tsunami. Learn how to make a family communication plan and what the warning signs of a tsunami are. (Ready.gov)

Forecast and Warning
Learn how the Tsunami Warning System works and how to respond. You can also find links to other tsunami information, event databases, and news articles. (National Oceanic and Atmospheric Administration)

Natural Disasters and Severe Weather - Tsunamis
Find information on the health concerns and effects of tsunamis. You can also get tips on food and water safety. (Centers for Disease Control and Prevention)

Tsunami Preparedness
Learn the warning signs of a tsunami and the best sources for information. Get tips on how to prepare and be aware of the area around you. You can also learn about the Safe and Well website to let your family know you’re safe. (American Red Cross)

Tsunami Hazard Mitigation
Get facts and information about tsunamis. You can also learn what to do if you’re on land or in a boat when you think a tsunami is coming. (University of Washington)

Last Updated: 09/17/2021