Site Map/Alternate Navigation Skip to Main Content

125 Years of Sound Science, serving society

Earthquake and Hazard Resources

The Berkeley Seismological Laboratory (BSL) provides robust and reliable data, both in real time and from our archives, that give the public as well as collaborators (such as the US Geological Survey and CalOES) information they need to better deal with, and prepare for, hazardous situations. In addition, the USGS and the BSL are responsible for reporting on Northern California earthquakes as part of the statewide monitoring effort known as the California Integrated Seismic Network.

real-time earthquake map

Our homepage displays a real-time, clickable earthquake map with the last seven days of earthquake activity, centered on the state of California.

ShakeMaps are automatically generated maps of near-real-time ground motion following significant earthquakes. Data from the BSL and other regional seismic networks are used to create these maps, which are distributed to federal, state, and local agencies for use in response and recovery.

Search for earthquakes in our Northern California and Global catalogs, hosted at our Northern California Earthquake Data Center.

Current Berkeley Digital Seismic Network Seismograms Take a quick look at the last 24 hours of data from our stations throughout Northern California.

From the USGS: Sign up for email or text message notification about earthquakes in California and/or the World Earthquake Notification Serivce. This free service alerts you when earthquakes happen in you area.

California Integrated Seismic Network archive of special reports on earthquakes of interest. The Berkeley Seismological Laboratory contributes reports for Northern California, while Southern California reports are contributed by the SCSN.

Report your shaking experience to the USGS with this online form.

Learn the seven steps to earthquake safety and follow some solid earthquake preparedness links. Also check out Totally Unprepared, a joint campaign of the California Office of Emergency Services and the California Earthquake Authority.


The Great California ShakeOut is a statewide earthquake drill to aid families and organizations in becoming prepared for the next big quake.


In Bloom, by Ken Goldberg, Sanjay Krishnan, Fernanda Viagas, and Martin Wattenberg, ground motion along the Hayward Fault in California is detected by a seismograph, transmitted continuously via the Internet and processed to generate an evolving field of circular blooms.

Hayward Fault Map

The Hayward Fault passes through UC Berkeley. Check out our web pages on the hazard in our own backyard.

Screenshot of Alquist Priolo Map

Looking for fault line information near your home? Information on the Alquist-Priolo Earthquake Fault Zoning (AP) Act, as well as downloadable and interactive fault zone maps. From the California Department of Conservation.