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)
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Earthquake Notification Service (ENS)
ShakeAlert® Earthquake Early Warning
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.
RSS FeedThe 2019 Ridgecrest, California, Earthquake Sequence Geonarrative
Remember the M6.4 and M7.1 Ridgecrest, CA earthquakes back in July 2019? Now you can explore and interact with a presentation summarizing the USGS response and research findings that were recently published.
ExploreNews
Natural Hazards Newsletter - Inaugural Issue - Vol. 1 | Issue 2021-Winter
We introduce the USGS Natural Hazards newsletter. In this issue: A new geonarrative about the 2019 Ridgecrest earthquake, Potential landslide in Alaska, Subduction Zone Science, Post-wildfire debris flow assessments, new @USGS_Quakes Twitter account, Mapping faults in Puerto Rico, Coastal Change Top Story, Photo Round Up and more!
Follow Earthquake Tweets
The USGS launched a new social media account (@USGS_Quakes) run by earthquake scientists and staff to "provide context for significant earthquakes and insights into seismic science."
2019 Ridgecrest, California Earthquake Sequence Geonarrative
A new geonarrative (Esri Story Map) summarizes the USGS response and findings after the M6.4 on July 4 and M7.1 on July 6, 2019 in Searles Valley, Southern California.
Publications
Earthquake early warning in Aotearoa New Zealand: A survey of public perspectives to guide warning system development
Earthquake early warning (EEW) can be used to detect earthquakes and provide advanced notification of strong shaking, allowing pre-emptive actions to be taken that not only benefit infrastructure but reduce injuries and fatalities. Currently Aotearoa New Zealand does not have a nationwide EEW system, so a survey of the public was undertaken to...
Becker, Julia S.; Potter, Sally H.; Vinnel, Lauren; Nakayachi, Kazuya; McBride, Sara; Johnston, David A. Evaluation of seismic hazard models with fragile geologic features
We provide an overview of a 2019 workshop on the use of fragile geologic features (FGFs) to evaluate seismic hazard models. FGFs have been scarcely utilized in the evaluation of seismic hazard models, despite nearly 30 yr having passed since the first recognition of their potential value. Recently, several studies have begun to focus on the...
Stirling, Mark W.; Oskin, Mike; Arrowsmith, J. Ramon; Rood, Anna H.; Goulet, Christine A.; Grant Ludwig, Lisa; King, Tamarah; Kottke, Albert; Lozos, Julian C.; Madugo, Chris L M; McPhillips, Devin; Rood, Dylan; Sleep, Norman; Wittich, Christine Injection‐induced earthquakes near Milan, Kansas, controlled by Karstic Networks
Induced earthquakes from waste disposal operations in otherwise tectonically stable regions significantly increases seismic hazard. It remains unclear why injections induce large earthquakes on non‐optimally oriented faults kilometers below the injection horizon, particularly since fluids are not injected under pressure, but rather poured, into...
Joubert, Charlene; Sohrabi, Reza; Rubinstein, Justin; Jansen, Gunnar; Miller, Stephen A