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). Tap/click on "gear icon" for options and settings.
View EarthquakesGeologic Cracks Record Earthquakes on Reelfoot Fault in Central U.S.
New high-resolution lidar data reveals cracks produced from strong shaking in past earthquakes iin the New Madrid seismic zone.
Read StoryExplore the Earthquake Hazards Program
Latest and historical earthquakes, hazards information, educational resources, maps, seismographic stations and real-time recording, current research in plain language, data, software and derived products.
Earthquake Notification Service and Web Services/Feeds
Earthquake Lists and Statistics
Earthquake Information by State or World Region
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Magnitude 8.0 Earthquake in Peru
A magnitude 8.0 earthquake struck north-central Peru on May 26, 2019 at 2:41 am local time (07:41 UTC).
MEDIA ADVISORY: Low-Level Flights in Charleston to Image Buried Faults and Ancient Lava Flows
Editor: In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.
Study of Alaskan Landslide Could Improve Tsunami Modeling
A rare submarine landslide provides researchers with a reference point for modeling the biggest tsunamis. (EOS article)
Publications
Radiometric ages of volcanic rocks on the fort rock dome and in the aquarius mountains, Yavapai and Mohave Counties, Arizona
The Fort Rock dome, in Yavapai County, Ariz., is a roughly circular geologic structure in plan view, 2.5 km in diameter, that is similar in many ways to an impact crater; however, it is a structural dome caused by a potassic mafic intrusion at depth, and the crater-like depression in its center is erosional in origin. The Aquarius Mountains, west...
Fuis, Gary S.; Calvert, Andrew T.; Sullivan, Katie
Evaluation of ground motion models for USGS seismic hazard forecasts: Induced and tectonic earthquakes in the Central and Eastern U.S.
Ground motion model (GMM) selection and weighting introduces a significant source of uncertainty in United States Geological Survey (USGS) seismic hazard models. The increase in moderate moment magnitude induced earthquakes (Mw 4 to 5.8) in Oklahoma and Kansas since 2009, due to increased wastewater injection related to oil and gas production (...
McNamara, Daniel E.; Petersen, Mark D.; Thompson, Eric M.; Powers, Peter M.; Shumway, Allison; Hoover, Susan M.; Moschetti, Morgan P.; Wolin, Emily
Stratigraphic and structural relations in trench exposures and geomorphology at the Big Burn, Lily Lake, and Lester Ranch sites, Bear River Fault Zone, Utah and Wyoming
This report provides trench photomosaics, logs and related site information, age data, and earthquake event evidence from three paleoseismic trench sites on the Bear River Fault Zone. Our motivation for studying the Bear River Fault Zone—a nascent normal fault in the Rocky Mountains east of the Basin and Range physiographic province—is twofold: (1...
Hecker, Suzanne; Duross, Christopher; Schwartz, David P.; Cinti, Francesca R.; Civico, Riccardo; Lund, William R.; Hiscock, Adam I.; West, Michael W.; Wilcox, Tarka; Stoller, Alivia R.