Earthquake Hazards

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The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. We undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP), a four-agency partnership established by Congress.

Latest Earthquakes

Latest Earthquakes

Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). Check out the new interface! (7/27/20)

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Earthquake Notification Service (ENS)
ShakeAlert® Earthquake Early Warning

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Subscribe to Earthquake News

Subscribe to Earthquake News

Want to know when there is a new earthquake-related announcement or new content on the website? You can now subscribe to the Earthquake Hazards Program News RSS feed.

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Auroras and Earthquakes: Strange Companions

Auroras and Earthquakes: Strange Companions

In a win-win situation for both seismologists and space physicists, a cheap magnetometer at a seismic station can result in better seismic data for earthquakes and also more geomagnetic data in real time for monitoring space weather.

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News

Date published: September 14, 2020

National Preparedness Month 2020: Earthquakes and Tsunamis

Natural hazards 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: September 2, 2020

Bill Barnhart Selected as the Earthquake Hazards Program Office Assistant Coordinator

The USGS Earthquake Hazards Program is pleased to announce that Bill Barnhart has been selected as the Earthquake Hazards Program Office Assistant Coordinator.

Date published: August 10, 2020

Salton Sea Earthquake Activity Returns to Normal Levels

Reduced activity for the swarm of earthquakes beneath the Salton Sea that began on August 10, 2020.
Last update: 08/14/2020 12pm Pacific

Publications

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Year Published: 2020

Earthquake information products and tools from the Advanced National Seismic System (ANSS)

 This Fact Sheet describes post-earthquake products and tools provided by the Advanced National Seismic System (ANSS) through the U.S. Geological Survey Earthquake Hazards Program. The focus is on products that provide situational awareness immediately after significant earthquakes.

Wald, Lisa A.
Wald, L.A., 2020, Earthquake information products and tools from the Advanced National Seismic System (ANSS): U.S. Geological Survey Fact Sheet 2020–3042, 2 p., https://doi.org/10.3133/fs20203042.

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Year Published: 2020

Forecasting for a fractured land: A case study of the communication and use of aftershock forecasts from the Mw 7.8 2016 Kaikōura earthquake in Aotearoa New Zealand

Operational earthquake forecasts (OEFs) are represented as time‐dependent probabilities of future earthquake hazard and risk. These probabilities can be presented in a variety of formats, including tables, maps, and text‐based scenarios. In countries such as Aotearoa New Zealand, the U.S., and Japan, OEFs have been released by scientific...

Becker, Julia S.; Potter, Sally H.; McBride, Sara; Hudson-Doyle, Emma E.; Gerstenberger, Matthew; Christopherson, Anne-Marie

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Year Published: 2020

Developing post-alert messaging for ShakeAlert, the earthquake early warning system for the West Coast of the United States of America

As ShakeAlert, the earthquake early warning system for the West Coast of the U.S., begins its transition to operational public alerting, we explore how post-alert messaging might represent system performance. Planned post-alert messaging can provide timely, crucial information to both emergency managers and ShakeAlert operators as well as...

McBride, Sara; Bostrom, Ann; Sutton, Jeannette; deGroot, Robert Michael; Baltay, Annemarie S.; Terbush, Brian; Bodin, Paul; Dixon, Maximilian; Holland, Emily; Arba, Ryan; Laustsen, Paul C.; Liu, Sophia; Vinci, Margaret