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Welcome to the TsunamiZone in California!

California's 2018 Tsunami Preparedness Week is March 26-30. Join us by registering your tsunami preparedness activities!

Map Click to see the number of North Coast participants Click to see the number of Shasta Cascade participants Click to see the number of Bay Area participants Click to see the number of participants from Delta Sierra Click to see the number of Delta Sierra participants Click to see the number of Inyo-Mono participants Click to see the number of participants from Central Valley South Click to see the number of Central Coast participants Click to see the number of participants from Southern California Coast Click to see the number of participants from Inland Southern California East Click to see the number of participants from San Diego Mouseover Mouseover Mouseover Mouseover





California participants
and counting!


Click the map for details about each area

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.

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

California Events

A list of TsunamiZone events will appear below.

Coming Soon

Add an event to the California calendar.

Know Your Zone


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 tsunami inundation maps show where areas on land can become quickly flooded when there is a tsunami. Tsunamis produce strong, rapidly moving currents that can flow onto normally dry land. Tsunamis are also dangerous for people in the water and boats or ships near the coastline.

Inundation maps are intended to be used to help guide people 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.

Search for a map of your area here.




The shaded rectangles show the regions where there are tsunami maps. You can you zoom in and move the view until you see the area you are interested in. When you zoom in close enough, the pale pink areas that appear are the tsunami inundation zones. You can also use the search box to locate a specific address.

Tsunami preparedness information about your area of interest can be found by clicking within the pink area on the map, then click on the arrow to the right of the small pop up icon. To download a KMZ file to view the tsunami zones on Google Earth, click here.


Learn more about tsunamis and other natural hazards in your neighborhood and how to reduce your risk at MyHazards.

California 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

Cal OES Tsunami Brochure Cal OES Tsunami Brochure (PDF)
TSUNAMIS! What Boaters Should Know TSUNAMIS! What Boaters Should Know (PDF)
CGS Tsunami Hazard Worksheet CGS Tsunami Hazard Worksheet (PDF)
Cal OES Tsunami Lesson Worksheet Cal OES Tsunami Lesson Worksheet (PDF)
Cal OES/CGS Tsunami Information Cal OES/CGS Tsunami Information (PDF)
Sausalito Tsunami Brochure Sausalito Tsunami Brochure (PDF)
ShakeOut Tsunami Drill ShakeOut Tsunami Drill (PDF)
Tohoku Tsunami poster Tohoku Tsunami Poster (PDF)

Educational Videos

Tsunamis: Know What to Do! - YouTube

Tsunami Preparedness in Central California, USA - YouTube

Tsunami Preparedness in Southern California, USA - YouTube

Tsunami Preparedness in Northern California, USA - YouTube

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

©2018 SCEC Southern California Earthquake Center @ USC
"TsunamiZone.org" name donated by
PVNET Technology Education Center
TsunamiZone.org Step 1: Secure it now! Step 2: Make a plan Step 3: Make disaster kits Step 4: Is your place safe? Step 5: Drop, Cover, and Hold On Step 6: Check it out! Step 7: Communicate and recover!