California Earthquake Risk

Now is the time to prepare

Weixiao Hu

October 9, 2021

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:

CEA - Earthquake Risk

Do you know the importance of seismic retrofitting? Learn about geological risks for houses in California, discover available options, and get resources needed to prepare your older house against earthquake damage.

https://www.earthquakeauthority.com

The Great California ShakeOut

International ShakeOut Day is always the third Thursday of October (this year: October 21). While COVID-19 has brought many uncertainties and challenges, one thing's for sure: ShakeOut is still happening this year! As always, you can hold your #ShakeOut drill when and where you want.

https://www.shakeout.org