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.

Read the Story

News

Date published: October 13, 2020

ShakeOut 2020: Staying Safe When the Ground Starts to Rumble

When the ground shakes, what do you do? ShakeOut 2020:  Drop, Cover, and Hold On!

Date published: October 8, 2020

From Volcanoes to Vineyards - New Geologic Map Reveals Portland's Deep History

new digital geologic map of the greater Portland-Vancouver-Hillsboro metropolitan area of Oregon and Washington being released today will support emergency response, conservation, agriculture and recreation.

Date published: September 30, 2020

Earthquake Forecast for the Westmorland Swarm beginning Sept. 30, 2020

A swarm of earthquakes southeast of the Salton Sea, in the Brawley seismic zone, began on Sept. 30, 2020.

Forecast last updated October 7, 2020 at 8:00am PDT.

Publications

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Year Published: 2020

Rainfall triggers more deep-seated landslides than Cascadia earthquakes in the Oregon Coast Range, USA

The coastal Pacific Northwest USA hosts thousands of deep-seated landslides. Historic landslides have primarily been triggered by rainfall, but the region is also prone to large earthquakes on the 1100-km-long Cascadia Subduction Zone megathrust. Little is known about the number of landslides triggered by these earthquakes because the last...

LaHusen, Sean R; Duvall, Alison R; Booth, Adam M; Grant, Alex R. R. ; Mishkin, Benjamin A; Montgomery, David R; Struble, William; Roering, Joshua J.; Wartman, Joseph

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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