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.

Photo of Sibley Volcanic Regional Preserve

Join UC Berkeley's Earth & Planetary Science Community for a Morning in the Field

Enjoy the scenic landscape of Sibley Volcanic Regional Preserve with students and professors from UC Berkeley's Earth and Planetary Science Department. Register now to attend October 2nd or October 30th from 9 AM to 12 PM. We hope to see you there!

Asymmetric Inner Core

Is Earth's Core Lopsided? Strange Goings-on in Our Planet's Interior

For reasons unknown, Earth’s solid-iron inner core is growing faster on one side than the other, and it has been ever since it started to freeze out from molten iron more than half a billion years ago, according to a new study by seismologists at the University of California, Berkeley. The faster growth under Indonesia’s...

Stress Interaction of wastewater injection & fault activation

Widespread Deep Seismicity in the Delaware Basin, Texas, Is Mainly Driven by Shallow Wastewater Injection

Industrial activity away from plate boundaries can induce earthquakes and has evolved into a global issue. Much of the induced seismicity in the United States' midcontinent is attributed to a direct pressure increase from deep wastewater...

Schematic of EEW Process

Alerts for the Whole West Coast

It was a decade in the making, but on Tuesday it became reality. The whole US West Coast is now covered by a single, uniform early warning system against the devastating effects of earthquakes. Washington was the last of the three states along the Pacific Coast to join the system dubbed “ShakeAlert”, which can give up to 60 seconds, or even more, of warning before strong seismic...

Photo of Peggy Hellweg

Peggy Hellweg Elected SSA President-Elect

Peggy Hellweg, operations manager for the Berkeley Seismological Laboratory (BSL) at the University of California, Berkeley, was elected president-elect by the Board of the Seismological Society of America on 14 April. Hellweg previously served as SSA Secretary and co-chaired the 100th Anniversary Earthquake Conference, SSA’s joint meeting with...

NCEDC logo

For Researchers: Upcoming NCEDC Outage Jan 1-4, 2021

The Northern California Earthquake Data Center (NCEDC) is the permanent archive and distribution center for various types of digital data relating to earthquakes in central and northern California. Of importance to researchers in seismology, between January 1, 2021 00:00:00 PST to January 4, 2021 23:59:59 PST the NCEDC will have reduced services or be offline. During that time, availability of the NCEDC web site and web services will also be affected. For several days after the outage, some requests for recent data may fail or return incomplete data, as BSL staff restore systems and archive missing data as it becomes available. This planned NCEDC outage is due to upgrades on the power systems at the UC Berkeley data center. This data center outage will not affect real-time earthquake location or earthquake early warning.

Beirut Explosion Israel Network

An Explosion in Beirut heard all over the Middle East

The terrible explosion which devastated the port of Beirut and large parts of the downtown area of the Lebanese capital on Tuesday sent shock waves through the Middle East and parts of southeastern Europe. Seismometers as far away as 600 miles from the blast site recorded the seismic waves it produced...

Photo of Barbara Romanowicz

ERC Interviews Professor Barbara Romanowicz

Barbara Romanowicz, geophysicist and expert on imaging the earth's interior, has been a member of the ERC’s Scientific Council since 2016. She explains the nature of her research, its reach across the planet and also updates us on gender issues developments at the ERC....
(Read more at ERC)