Richard Allen

Research Bio

Richard Allen is the Director of the Berkeley Seismology Lab and the Class of 1954 Endowed Professor in the Department of Earth and Planetary Science at UC Berkeley.  A leading voice in global seismic safety, he also serves as a member of the Earthquake Team at Google.

As a seismologist, his research interests span deep Earth structure, the earthquake source, and hazard reduction through societal engagement.  His group uses seismic imaging techniques to constrain dynamic processes at tectonic boundaries, and his focus on real-time seismology has led to the development of earthquake early warning systems now used around the globe.  He links scientific and technological advances to practical, societally-relevant hazard reduction, including through the development of the smartphone-based citizen-science oriented MyShake network.  

His research has been featured in Science, Nature, Scientific American, the New York Times and dozens of other media outlets around the world. His original early warning algorithm was named in Discover Magazine’s top 100 science stories for 2003, and became the backbone for ShakeAlert, the U.S. earthquake early warning system. MyShake was an inspiration for Google's global Android Earthquake Alerts system, which was named one of the greatest innovations in 2020 by Popular Science.  Most recently his work with the Android Earthquake Alerting System was recognized as a "Top 10 Breakthrough" of 2025 by PhysicsWorld.

He has a BA from the University of Cambridge, a PhD from Princeton University, and was a Postdoctoral Fellow at Caltech.

Research Expertise and Interest

Seismology, earthquakes, earthquake hazard mitigation, deep earth structure & dynamics, tomography, natural hazards

In the News

With a nod to UC Berkeley, Google crowdsources earthquake data

A UC Berkeley idea to crowdsource every cellphone on the planet to create a global seismic network has been adapted by Google and incorporated into the Android operating system, kicking off an effort to build the world’s largest network of earthquake detectors.

California rolls out first statewide earthquake early warning system

California Gov. Gavin Newsom today (Thursday, Oct. 17) announced the debut of the nation’s first statewide earthquake early warning system that will deliver alerts to people’s cellphones through an app developed at the University of California, Berkeley. The mobile phone app, MyShake, can provide seconds of warning before the ground starts to shake from a nearby quake — enough time to drop, cover and hold on to prevent injury.

Scientists map source of Northwest’s next big quake

A large team of scientists has nearly completed the first map of the mantle under the tectonic plate that is colliding with the Pacific Northwest and putting Seattle, Portland and Vancouver at risk of the largest earthquakes and tsunamis in the world.

Earthquake alert system may be coming

The San Francisco Chronicle recently reported on the work of Richard M. Allen, Director of the UC Berkeley Seismological Laboratory, for helping to develop an early warning system that flashes imminent danger when a damaging earthquake is about to strike.

Featured in the Media

Please note: The views and opinions expressed in these articles are those of the authors and do not necessarily reflect the official policy or positions of UC Berkeley.
July 31, 2019
Maya Wei-Haas
A missing piece of the Juan de Fuca tectonic plate under central Oregon suggests that the plate is breaking apart some 93 or more miles under the Earth's surface, according to a new study co-authored by doctoral earth and planetary science student William Hawley and earth and planetary science professor Richard Allen, director of the Berkeley Seismological Laboratory. The oceanic plate plunges under the North American plate in the Cascadia subduction zone, and it could unleash one of the largest possible earthquakes in the U.S. someday. The researchers drew their conclusions after mapping the different speeds of seismic waves created by 217 earthquakes, and looked at how the waves changed according to the temperature and composition of the rock. What they perceived was that the colder, denser Juan de Fuca plate is sinking into the mantle and part of it is, in fact, missing. "What we are looking at right now is the death of an oceanic plate," Hawley says. Another story on this topic appeared in Science Alert.
Loading Class list ...