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 map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). Check out the new interface! (7/27/20)
Did You Feel It?
Earthquake Notification Service (ENS)
ShakeAlert® Earthquake Early Warning
Listening to the Earth at the South Pole
If you want to listen to the softest whispers of the Earth, the South Pole is where you want to be. Seismic station, QSPA has been allowing us to eavesdrop on the Earth for over six decades, and it may soon gain the equivalent of hearing aids.
Read the StoryAlaska Peninsula Earthquake Sequences of 2020-2021
Explore this interactive geonarrative summary of the earthquake sequence in the Alaska Peninsula during 2020 and 2021.
ExploreNews
USGS Hazards Science – Be Informed and Be Prepared
Read below to learn about USGS hazards science, National Preparedness Month, and resources available to explore various hazards in more detail or sign up for alerts.
Magnitude 7.0 Earthquake near Acapulco, Mexico
A magnitude 7.0 earthquake struck Acapulco in Oaxaca, Mexico on September 7, 2021 at about 9:48 pm Eastern Daylight Time (September 8 at 01:48 UTC).
Magnitude 7.2 Earthquake in Haiti
A magnitude 7.2 (M 7.2) earthquake struck Haiti on August 14, 2021, at 8:29 am local time (August 14, 2021 12:29 UTC).
Publications
NGA-East Ground-Motion Characterization model part I: Summary of products and model development
In this article, we present an overview of the research project NGA-East, Next Generation Attenuation for Central and Eastern North America (CENA), and summarize the key methodology and products. The project was tasked with developing a new ground motion characterization (GMC) model for CENA. The final NGA-East GMC model includes a set of 17...
Goulet, Christine A.; Bozorgnia, Yousef; Kuehn, Nicolas; Al Atik, Linda; Youngs, Robert; Graves, Robert; Atkinson, Gail M. Coastal Tree-Ring Records for Paleoclimate and Paleoenvironmental Applications in North America
For more than a century, tree-ring research has identified relationships between climatic and ecological conditions and tree growth to describe past environments and constrain future ecosystem vulnerabilities. Tree-ring records are frequently used as environmental proxies that extend knowledge of past climate and ecology on millennial scales. Many...
Tucker, Clay; Pearl, Jessie Kathleen Evaluating spectral ratio methods for characterizing fundamental resonance peaks on flat sediments: An example from the Atlantic Coastal Plain, Eastern United States
Damaging ground motions from the 2011 Mw">Mw 5.8 Virginia earthquake were likely increased due to site amplification from the unconsolidated sediments of the Atlantic Coastal Plain (ACP), highlighting the need to understand site response on these widespread strata along the coastal regions of the eastern United States. The horizontal‐...
Schleicher, Lisa Sue; Pratt, Thomas L.