January 31, 2022
Our summary of effects in California, and the state's response.
We now have updated tsunami hazard area maps for 13 of the state's 20 coastal counties. The latest maps cover the counties of Orange, Santa Barbara, San Luis Obispo, San Francisco, Santa Clara, and Contra Costa.
March 11, 2021
A scientific perspective of the event, including details of what happened in Japan and subsequently in California.
This first installment in our three-part retrospective examines the 2011 event, and the lessons California learned that are helping us prepare for the next one.
Explore the impacts from the earthquake and tsunami in Japan with an in-depth and unique perspective from California tsunami scientists.
Discover how the 2011 tsunami impacted California and set the course for improvements to tsunami resiliency.
at the NOAA tsunami web site
TsuInfo Alert Newsletter
A partner of the California Tsunami Program, the Redwood Coast Tsunami Work Group offers a wealth of tsunami‑related content.
The California Tsunami Program (CTP) is a collaboration between the the California Geological Survey (CGS) Tsunami Unit, the California Governor’s Office of Emergency Services (Cal OES), and entities at the local level (counties, cities, community workgroups). For tsunami hazard mapping, the CTP works closely with the Tsunami Research Center at the University of Southern California and others to produce statewide Tsunami Hazard Area Maps and preparedness information for California. The CGS is also the scientific representative for California on the National Tsunami Hazard Mitigation Program Coordinating Committee, a state and federal cooperative responsible for developing policies and standards for tsunami mitigation efforts in the United States and its territories.
Preparation • Response • Recovery • Mitigation
Web page by: California Seismic Hazards Program