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 can cause a local tsunami to arrive in minutes. Tsunamis can also travel across the ocean from distant earthquakes.
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 on the water. 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.
Tsunami preparedness information about your county can be found on the tsunami map page:
Click to download a KMZ file to view the tsunami zones on Google Earth.
Learn more about tsunamis and other natural hazards in your neighborhood and how to reduce your risk at MyHazards.