Working on PTRB, our GPS station at Point Reyes

The Berkeley Seismological Laboratory conducts essential research on earthquakes and solid earth processes while collecting and delivering high quality geophysical data.

We provide robust and real-time earthquake and hazard information on Northern California earthquakes, in collaboration with our partners.

We enable the broad consumption of earthquake information by the general public while educating and training students at all levels.

Graph showing expected shaking of hypothetical M7 quake on the Hayward Fault

Can We Outsmart a Disaster?

This blog has never been about fear mongering. We have always tried to describe seismic hazards and their associated risks properly, without drifting into horror scenarios about devastating earthquakes. But what you will read here in the next few minutes, will sound like the farfetched plot of a bad Hollywood disaster movie...

Screen shot showing ground shaking in red along the Hayward Fault, on a grayscale map of the East Bay

M7 Hayward Fault Simulation

Explore the science behind a simulation of a magnitude 7 earthquake on the East Bay's Hayward Fault and learn what it could mean for shaking potential in your area...

Graph of Hayward Fault recurrence interval

What a Difference 150 Years Make

During the next few months, people in Northern California will hear a lot about the Hayward Fault. This geologic fault line, which extends along the foot of the East Bay Hills from Point Pinole in the north to the Warm Springs District of Fremont in the south, is considered one of the most dangerous earthquake faults in our area...

DIY Seismograph

DIY Seismograph

Build your own seismograph with stuff you have around the house in our latest Seismo Vlog...

Circular seismogram recording.

Today in Earthquake History: Oldest Seismogram 1881

Seismograms are at the heart and soul of earthquake science. Generated by sensitive instruments, they show how the ground or a building wiggles in response to seismic shaking...

Map showing epicenter of Papua New Guinea quake

The Strongest Quake in a Remote Mountain Range

When the blogger once visited the giant Ok Tedi gold and copper open pit mine in the remote highlands of Papua-New Guinea, the chief geologist of the mine uttered a seemingly abstract statement...

Sarah Beroff

McCone Henge

Sara Beroff takes us on a guided tour of the sculptural rock garden outside of McCone Hall. Watch and discover different rock types that have been important to California's past....

Events at the Berkeley Seismo Lab