California Earthquake Risk

Now is the time to prepare

Xander Bishop

March 12, 2025

California is home to 15,700 known faults, and scientists discover more each year.

Earthquake fault locations, recent earthquakes in the past 7 days, and earthquake risk in California.

Most California residents live within 30 miles of an active fault

Use the Slides widget to view active faults near major California cities

There is a 99 percent chance of one or more magnitude 6.7+ earthquakes occurring in California within the next 30 years.

Now is the time to prepare for an earthquake event.

For more information about how to prepare for and stay safe during an earthquake, see the following resources:

California Earthquake Risk - Seismic Risk for CA's Major Metros | CEA

CA is one of the most earthquake prone states in the country. Learn about your local risks, then find out how to prepare your home for the next big quake!

https://www.earthquakeauthority.com

The Great California ShakeOut

Great ShakeOut Earthquake Drills help people in homes, schools, and organizations worldwide improve preparedness and practice how to be safe during earthquakes. Register to participate in your state or country's drill at www.ShakeOut.org.

https://www.shakeout.org

Earthquake Safety - HSI

Because earthquakes can occur without warning, it's important for employers and their workers to know proper earthquake safety protocol for their area.

https://hsi.com