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
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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 FeedImproving Earthquake Monitoring with Deep Learning
Can a deep-learning approach perform better than NEIC’s traditional methods to get more accurate earthquake locations and magnitudes? The NEIC monitoring system is a perfect candidate for deep learning because it processes large amounts of data.
Read the storyNews
Media Advisory: Where Earthquakes Hide in the Desert - Live Online Public Lecture
You are invited to a public lecture about recent surface rupturing earthquakes in the western United States.
Magnitude 6.1 and 7.3 Earthquakes in China
A magnitude 6.1 earthquake struck south-central China near Dali on May 21, 2021 at 9:48 pm local time (May 21 at 13:48 UTC) followed by a magnitude 7.3 on May 22 at 2:04 am local time (May 21 at 18:04 UTC). Seismic instruments indicate both earthquakes originated at a depth of 6.2 miles (10 kilometers).
SPCMSC Hosted Meeting on USGS Puerto Rico Hazards Resources Across Multiple Centers and Mission Areas
Coastal Change Hazards researchers Dr. Legna Torres-Garcia and Dr. Donya Frank-Gilchrist of the St. Petersburg Coastal and Marine Science Center (SPCMSC) organized a joint meeting with principal investigators currently conducting hazards-related projects in Puerto Rico.
Publications
Short‐period surface‐wave tomography in the continental United States—A resource for research
grid for the four independent tomographic inversions (Love and Rayleigh and phase and group velocity). One reason for trying to obtain short‐period dispersion was to have a data set capable of constraining upper crust velocity models for use in determining regional moment tensors. The benefit of focusing on short‐period dispersion is...
Herrmann, R. B.; Ammon, C. J.; Benz, Harley M.; Aziz-Zanjani, A.; Boschelli, J. Seismic wave propagation and basin amplification in the Wasatch Front, Utah
Ground‐motion analysis of more than 3000 records from 59 earthquakes, including records from the March 2020 Mw">MwMw 5.7 Magna earthquake sequence, was carried out to investigate site response and basin amplification in the Wasatch Front, Utah. We compare ground motions with the Bayless and Abrahamson (2019; hereafter, BA18)...
Moschetti, Morgan P.; Churchwell, David Henry; Thompson, Eric M.; Rekoske, John; Wolin, Emily; Boyd, Oliver S. The proliferation of induced seismicity in the Permian Basin, Texas
The Permian Basin has a long history of induced earthquakes, but the seismicity rates have increased dramatically over the past two decades and included a MW 5.0 likely induced by wastewater disposal (WD) in March 2020. A detailed characterization of the proliferation of seismicity in the Permian Basin throughout this time period is...
Skoumal, Robert; Trugman, Daniel T.