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online search by time window, area, magnitude, and more
online search by time window, area, magnitude, and more
The Loneliest Seismometers on Earth
Deploying new seismometers to the South Pole
Deploying new seismometers to the South Pole
Significant Earthquakes, Past 30 days
Significant Earthquakes, Past 30 days
7.1
55 km NNW of Kota Belud, Malaysia
2026-02-22 16:57:46 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
619.8 km
6.4
53 km WNW of Port-Olry, Vanuatu
2026-02-14 02:27:38 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
10.0 km
6.2
32 km SW of Ovalle, Chile
2026-02-12 13:34:31 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
36.9 km
4.6
8 km NNW of Meadow Lakes, Alaska
2026-02-10 20:42:23 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
30.0 km
4.2
4 km SE of San Ramon, CA
2026-02-02 15:01:14 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
9.6 km
3.8
4 km SSE of San Ramon, CA
2026-02-02 14:27:01 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
9.1 km
4.2
10 km NE of Black Eagle, Montana
2026-01-29 19:41:09 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
20.4 km
7.1
55 km NNW of Kota Belud, Malaysia
2026-02-22 16:57:46 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
619.8 km
6.4
53 km WNW of Port-Olry, Vanuatu
2026-02-14 02:27:38 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
10.0 km
6.2
32 km SW of Ovalle, Chile
2026-02-12 13:34:31 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
36.9 km
4.6
8 km NNW of Meadow Lakes, Alaska
2026-02-10 20:42:23 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
30.0 km
4.2
4 km SE of San Ramon, CA
2026-02-02 15:01:14 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
9.6 km
3.8
4 km SSE of San Ramon, CA
2026-02-02 14:27:01 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
9.1 km
4.2
10 km NE of Black Eagle, Montana
2026-01-29 19:41:09 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
20.4 km
Earthquake Hazards Program
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
Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System).
Search Earthquake Catalog
Search Earthquake Catalog
Find an earthquake or a list of earthquakes by time window, magnitude, area, and more, and choose the output format - map and list, CVS, and others.
News
The Loneliest Seismometers on Earth
The Loneliest Seismometers on Earth
Updates for ShakeAlert False Alert for M5.9 Earthquake near Carson City, NV (Dec. 2025)
Updates for ShakeAlert False Alert for M5.9 Earthquake near Carson City, NV (Dec. 2025)
USGS releases aftershock forecast for M8.8 Russian Kamchatka Peninsula Earthquake
USGS releases aftershock forecast for M8.8 Russian Kamchatka Peninsula Earthquake
Publications
Site response models based on geometric parameters for southern California sedimentary basins Site response models based on geometric parameters for southern California sedimentary basins
Site response in sedimentary basins is influenced by complex three-dimensional (3D) features, including trapping of seismic waves, focusing of seismic energy and basin resonance. Current ground motion models (GMMs) incorporate basin effects using one-dimensional parameters like VS30 and shear wave velocity isosurface depths, which are limited in capturing lateral and 3D effects. To...
Latest Pleistocene to 19th-century earthquakes on bending-moment reverse faults of the Seattle fault zone, Washington Latest Pleistocene to 19th-century earthquakes on bending-moment reverse faults of the Seattle fault zone, Washington
Fault-related folds and their associated secondary faults play a critical yet often underrecognized role in accommodating strain and generating earthquakes in active fold-and-thrust belts. In the Seattle fault zone (SFZ), Washington, USA, we present new paleoseismic, geomorphic, and geophysical evidence for late Pleistocene and Holocene earthquakes on shallow, south-dipping secondary...
Remote compositional analyses of space-weathered lunar maria Remote compositional analyses of space-weathered lunar maria
Visible-to-shortwave infrared (VSWIR) reflectance spectroscopy has revolutionized our understanding of planetary surface compositions. However, space-weathering processes on airless bodies complicate quantitative compositional analyses. Here, we present a framework to isolate the signatures of space weathering in VSWIR spectra of lunar maria by leveraging radiative transfer modeling...
Science
Earthquake Sequence Product
The USGS earthquake Sequence Product aims to identify and describe earthquakes that are clustered in space and time as “sequences.” Its overarching goal is to provide simple contextual information regarding the spatial and temporal interconnection of earthquakes.
Engineering and Risk
The well-known statement "Earthquakes don't kill people, buildings do" highlights the need to make our communities more earthquake resilient. The impact of earthquakes on public safety and the national economy can be reduced through improvement of the built environment to resist earthquake effects such as ground shaking. Extending natural hazards science to risk involves (1) conducting research to...
2025 Puerto Rico and U.S. Virgin Islands Long-term National Seismic Hazard Model
As we near full release of the 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model, please check the table below for links to input model documentation, data releases, computer software, and review panel reports. Links will be updated as items are published.
