The USGS ShakeAlert Earthquake Early Warning System uses earthquake science and technology to detect significant earthquakes quickly so that alerts can reach many people before shaking arrives. The seconds to tens of seconds of advance warning can allow people and systems to take actions to protect life and property from destructive shaking.


From Our Director, Jim Reilly

From Our Director, Jim Reilly

"ShakeAlert—our country’s first public earthquake early warning system will allow citizens, institutions, and managers of essential infrastructure to take timely actions that will save lives and property."

Learn More

ShakeAlert in the News

ShakeAlert in the News

Learn more and stay up-to-date about Earthquake Early Warning development in the news, new study examines safety potentials and limts, public lectures, and more. 

Get News

For the News Media

For those of you that are covering the unfolding ShakeAlert story for the Great ShakeOut this week, check out resources that may help in your reporting.

B-Roll: California ShakeAlert Sensor

B-Roll: Northwest ShakeAlert Sensor Station

USGS ShakeAlert Implementation Plan

Dr. Jim Reilly — USGS Director portrait

Current Status

Our Partners

Interview Contact




Date published: September 18, 2019

USGS Hazard Science – Understanding the Risks is Key to Preparedness

 Learn About USGS Hazards Science and More About National Preparedness Month:  The very nature of natural hazards means that they have the potential to impact a majority of Americans every year.  USGS science provides part of the foundation for emergency preparedness whenever and wherever disaster strikes.

Date published: August 19, 2019

USGS Awards More Than $12.5 Million to Advance the ShakeAlert Earthquake Early Warning System in California, Oregon and Washington

The U.S. Geological Survey has awarded more than $12.5 million to seven universities and a university-governed non-profit to support operation, improvement and expansion of the ShakeAlert earthquake early warning system for the West Coast of the United States.

Date published: October 16, 2018

The Great ShakeOut! -- 2018 Edition

Do you know what to do the moment the ground starts shaking? Drop, Cover, and Hold On!


Publication Thumbnail
Year Published: 2018

Revised technical implementation plan for the ShakeAlert system—An earthquake early warning system for the West Coast of the United States

The U.S. Geological Survey (USGS), along with partner organizations, has developed an earthquake early warning (EEW) system called ShakeAlert for the highest risk areas of the United States: namely, California, Oregon, and Washington. The purpose of the system is to reduce the impact of earthquakes and save lives and property by providing alerts...

Given, Douglas D.; Allen, Richard M.; Baltay, Annemarie S.; Bodin, Paul; Cochran, Elizabeth S.; Creager, Kenneth; de Groot, Robert M.; Gee, Lind S.; Hauksson, Egill; Heaton, Thomas H.; Hellweg, Margaret; Murray, Jessica R.; Thomas, Valerie I.; Toomey, Douglas; Yelin, Thomas S.
Given, D.D., Allen, R.M., Baltay, A.S., Bodin, P., Cochran, E.S., Creager, K., de Groot, R.M., Gee, L.S., Hauksson, E., Heaton, T.H., Hellweg, M., Murray, J.R., Thomas, V.I., Toomey, D., and Yelin, T.S., 2018, Revised technical implementation plan for the ShakeAlert system—An earthquake early warning system for the West Coast of the United States: U.S. Geological Survey Open-File Report 2018–1155, 42 p., [Supersedes USGS Open-File Report 2014–1097.]

Publication Thumbnail
Year Published: 2017

Earthquake Early Warning ShakeAlert System: Testing and certification platform

Earthquake early warning systems provide warnings to end users of incoming moderate to strong ground shaking from earthquakes. An earthquake early warning system, ShakeAlert, is providing alerts to beta end users in the western United States, specifically California, Oregon, and Washington. An essential aspect of the earthquake early warning...

Cochran, Elizabeth S.; Kohler, Monica D.; Given, Douglas D.; Guiwits, Stephen; Andrews, Jennifer; Meier, Men-Andrin; Ahmad, Mohammad; Henson, Ivan; Hartog, J. Renate; Smith, Deborah
Cochran, E. S., Kohler, M. D., Given, D. D., Guiwits, S., Andrews, J., Meier, M.-A., Ahmad, M., Henson, I., Hartog, R., Smith, D. E. (2018). Earthquake Early Warning ShakeAlert System: Testing and Certification Platform, Seismological Research Letters, 89 (1), 108–117, doi:

Publication Thumbnail
Year Published: 2017

Earthquake early Warning ShakeAlert system: West coast wide production prototype

Earthquake early warning (EEW) is an application of seismological science that can give people, as well as mechanical and electrical systems, up to tens of seconds to take protective actions before peak earthquake shaking arrives at a location. Since 2006, the U.S. Geological Survey has been working in collaboration with several partners to...

Kohler, Monica D.; Cochran, Elizabeth S.; Given, Douglas D.; Guiwits, Stephen; Neuhauser, Doug; Hensen, Ivan; Hartog, J. Renate; Bodin, Paul; Kress, Victor; Thompson, Stephen; Felizardo, Claude; Brody, Jeff; Bhadha, Rayo; Schwarz, Stan
Monica D. Kohler, Elizabeth S. Cochran, Doug Given, Steve Guiwits, Doug Neuhauser, Ivan Henson, Renate Hartog, Paul Bodin, Victor Kress, Stephen Thompson, Claude Felizardo, Jeff Brody, Rayo Bhadha, Stan Schwarz; Earthquake Early Warning ShakeAlert System: West Coast Wide Production Prototype. Seismological Research Letters ; 89 (1): 99–107. doi: