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Earthquake Hazards

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 Interface

Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System).

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Listening to the Earth at the South Pole

circle with map of Antarctica at South Pole, and US map with circle on it

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.

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News

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USGS Seeks Earthquake Hazards Research Proposals

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Take a Tour of the Earthquake Hazards Program Site

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Magnitude 7.3 Earthquake near Namie, Japan

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Publications

Improved resolution across the Global Seismographic Network: A new era in low-frequency seismology

The Global Seismographic Network (GSN)—a global network of ≈150 very broadband stations—is used by researchers to study the free oscillations of the Earth (≈0.3–10 mHz) following large earthquakes. Normal‐mode observations can provide information about the radial density and anisotropic velocity structure of the Earth (including near the core–mantle boundary), but only when signal‐to‐noise ratios
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Natural Hazards, Earthquake Hazards, Geologic Hazards Science Center

Considerations for creating equitable and inclusive communication campaigns associated with ShakeAlert, the earthquake early warning system for the West Coast of the USA

PurposeThe 2019 Global Assessment Report on Disaster Risk Reduction (GAR) cites earthquakes as the most damaging natural hazard globally, causing billions of dollars of damage and killing thousands of people. Earthquakes have the potential to drastically impact physical, social and economic landscapes; to reduce this risk, earthquake early warning (EEW) systems have been developed. However, these
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Natural Hazards, Earthquake Hazards, Earthquake Science Center

Insights into the geometry and evolution of the southern San Andreas Fault from geophysical data, southern California

Two new joint gravity-magnetic models in northern Coachella Valley provide additional evidence for a steep northeast dip of the Mission Creek strand of the southern San Andreas fault (southern California, USA). Gravity modeling indicates a steep northeast dip of the Banning fault in the upper 1–2 km in northern Coachella Valley. The Mission Creek strand and its continuation to the southeast (Coach
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Natural Hazards, Earthquake Hazards, Geology, Minerals, Energy, and Geophysics Science Center
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