Welcome to the TsunamiZone in California!

California’s 2020 Tsunami Preparedness Week is March 23-27. Join us by registering your tsunami preparedness activities!

California participants
and counting!

What will you do in your home, organization, or community this year? Participating is a great way for your family or organization to “know your zone” if you live, work, or visit near the ocean (or may visit), and to learn what to do to be safe.

Millions of people enjoy California’s wonderful coastline! Whether you live, work, or visit, it is important to be aware that the coastal region is vulnerable to tsunamis. California’s large offshore faults and steep underwater slopes could cause a local tsunami to arrive in minutes. Tsunamis can also travel across the ocean from distant earthquakes. Although these events are rare, it is important to know what to do. If you are visiting the beach and you feel an earthquake, you should get to high ground or go inland.

California Events

A list of upcoming TsunamiZone events will appear below if available. Check the calendar for more.

Event organizers: If your activity is open to the public or a potential news venue, please complete our Event Form.

Media Contact:

Brad Alexander, Public Information and Media Relations
California Governor’s Office of
Emergency Services

Phone: (916) 845-8455

participants registered

Local Resources

“Know Your Zone” means to find out if you
live, work, or travel in a tsunami hazard zone.

Select an area to view resources for that location.

California Resources

1) CalOES MyHazards Tool

Learn more about the risk for tsunamis and other natural hazards (including earthquakes, floods, and fire) in your neighborhood, and how to reduce your risk at MyHazards, a tool provided by the California Governor’s Office of Emergency Services.

2) CGS Tsunami Inundation Maps

California tsunami inundation maps show where areas on land can become quickly flooded from a tsunami’s waves. Inundation maps are intended to be used to help people plan how they can get from dangerous areas to safe areas by showing where high, safe ground is located. These maps can be used by anyone to plan a safe evacuation route. You can practice walking out of the tsunami zone to be better prepared for a real tsunami. And you can see recent technical reports on tsunamis here.

3) Preparedness Resources

A collection of tsunami preparedness materials specific to California is listed below. You may want to also access our global resources page for more information.

– California Geological Survey Tsunami Program

– Cal OES Earthquake and Tsunami Program


4) Educational Videos

Tsunamis: Know What to Do!

Tsunami Preparedness in Southern California

Tsunami Preparedness in Central California

Tsunami Preparedness in Northern California

Recovering Hope: A Piece of Tsunami Debris
Brings Two Cities Together