Earthquake Science Center

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Date published: December 11, 2019

USGS provides update for the National Seismic Hazard Model

USGS experts recently released a study that incorporates the latest earthquake science findings into an update of the National Seismic Hazard Model for the “lower-48” United States.  Read the full report here:  https://journals.sagepub.com/doi/full/10.1177/8755293019878199

Date published: October 17, 2019

All Systems Go for First Statewide Testing of ShakeAlert in the United States

Today, the U.S. Geological Survey and the State of California pressed the “go” button to allow the first-ever statewide public testing of the California Early Earthquake Warning System, which is powered by USGS’s earthquake early warning alerts, called ShakeAlerts.

Date published: October 17, 2019

What if the ShakeAlert Earthquake Early Warning System Had Been Operating During the M6.9 1989 Loma Prieta Earthquake?

How will ShakeAlert® likely perform now on a large earthquake impacting a major urban area? How much warning will you get? To answer this, let’s do a thought experiment...

Read the new Science for Everyone article at What if the ShakeAlert Earthquake Early Warning System...

Date published: October 16, 2019

The 2019 Great ShakeOut

When the ground starts to shake, what do you do?  Great ShakeOut 2019:  Drop, Cover, and Hold On!

Date published: October 11, 2019

New Earthquake Science for Everyone Web Article

The goal of an earthquake early warning (EEW) system is to provide an alert to people and automatic systems after an earthquake begins but before the shaking reaches their location. Two recent studies explored the timeliness and accuracy of alerts.

Read Earthquake Early Warning...

Date published: September 20, 2019

New Earthquake Science for Everyone Web Article

Two of the first questions that come to mind for anyone who just felt an earthquake are, “Will there be another one?” and “Will it be larger?”.

Read Could the M7.1 Ridgecrest, CA Earthquake Sequence Trigger a Large Earthquake Nearby?

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 17, 2018

The Hayward Fault—Is It Due for a Repeat of the Powerful 1868 Earthquake?

By Thomas M. Brocher, Jack Boatwright, James J. Lienkaemper, Carol S. Prentice, David P. Schwartz, and Howard Bundock

Drawn from: USGS Fact Sheet 2018-3052

Date published: September 6, 2018

Magnitude 6.6 Earthquake in Japan

The USGS has up-to-date details on the September 5, 2018 event.

Date published: August 14, 2018

USGS announces awards for 2018 earthquake monitoring and research in the United States

The U.S Geological Survey announces that the agency has awarded more than $20 million in 2018 for earthquake monitoring and applied research.  

Date published: March 27, 2018

Earthquake Early Warning! New Study Examines Safety Potentials and Limits

In a newly published study, U.S. Geological Survey scientists and their partners calculate possible alert times that earthquake early warning systems can provide people at different levels of ground motion from light to very strong shaking.