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online search by time window, area, magnitude, and more
Machine Learning Mapping in the Sierra Nevada Mountains
A new study mapping the bedrock outcrops in California
A new study mapping the bedrock outcrops in California
Significant Earthquakes, Past 30 days
Significant Earthquakes, Past 30 days
6.5
36 km NNE of Olonkinbyen, Svalbard and Jan Mayen
2025-03-10 02:33:14 (UTC)
Pager Alert Level: Green
MMI: VIII (Severe Shaking)
10.0 km
4.1
11.4 km
4.5
2025 Orcas Island, Washington
2025-03-03 13:02:38 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
15.8 km
3.8
2 km ESE of North Hollywood, CA
2025-03-03 06:13:45 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
15.6 km
4.8
26 km SW of Ackerly, Texas
2025-02-28 19:33:24 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
6.8 km
5.5
14 km S of Kodāri̇̄, Nepal
2025-02-27 21:06:10 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
10.0 km
5.9
102 km NNE of Punta Cana, Dominican Republic
2025-02-25 05:48:55 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
46.0 km
3.4
6 km SSE of Lea Hill, Washington
2025-02-22 11:45:29 (UTC)
Pager Alert Level: Gray (Null)
MMI: III (Weak Shaking)
25.4 km
4.8
27 km W of Squamish, Canada
2025-02-21 21:26:33 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
10.0 km
4.8
10.0 km
4.2
10.0 km
3.7
10 km WNW of Malibu, CA
2025-02-15 07:44:05 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
15.4 km
5.0
53 km NW of Toyah, Texas
2025-02-15 05:23:21 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
6.1 km
5.1
10.0 km
6.5
36 km NNE of Olonkinbyen, Svalbard and Jan Mayen
2025-03-10 02:33:14 (UTC)
Pager Alert Level: Green
MMI: VIII (Severe Shaking)
10.0 km
4.1
11.4 km
4.5
2025 Orcas Island, Washington
2025-03-03 13:02:38 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
15.8 km
3.8
2 km ESE of North Hollywood, CA
2025-03-03 06:13:45 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
15.6 km
4.8
26 km SW of Ackerly, Texas
2025-02-28 19:33:24 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
6.8 km
5.5
14 km S of Kodāri̇̄, Nepal
2025-02-27 21:06:10 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
10.0 km
5.9
102 km NNE of Punta Cana, Dominican Republic
2025-02-25 05:48:55 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
46.0 km
3.4
6 km SSE of Lea Hill, Washington
2025-02-22 11:45:29 (UTC)
Pager Alert Level: Gray (Null)
MMI: III (Weak Shaking)
25.4 km
4.8
27 km W of Squamish, Canada
2025-02-21 21:26:33 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
10.0 km
4.8
10.0 km
4.2
10.0 km
3.7
10 km WNW of Malibu, CA
2025-02-15 07:44:05 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
15.4 km
5.0
53 km NW of Toyah, Texas
2025-02-15 05:23:21 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
6.1 km
5.1
10.0 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 Night the Earth Shook
The Night the Earth Shook
(Some) Assembly Required: How to sign your organization up for the Great ShakeOut
(Some) Assembly Required: How to sign your organization up for the Great ShakeOut
USGS seeking Loma Prieta felt reports from 35-year-old earthquake
USGS seeking Loma Prieta felt reports from 35-year-old earthquake
Publications
Phase 1 technical implementation plan for the expansion of the ShakeAlert earthquake early warning system to Alaska
Executive SummaryThe conference report accompanying the fiscal year (FY) 2022 Consolidated Appropriations Act (Public Law 117–103) for the U.S. Department of the Interior and related agencies directed the U.S. Geological Survey (USGS) to “work with the State of Alaska to develop an implementation plan to be completed within two years in order to put ShakeAlert/Earthquake Early Warning in...
Migration of seismicity from the mantle to the upper crust beneath Harrat Lunayyir volcanic field, Saudi Arabia
Harrat Lunayyir is a volcanic field in Saudi Arabia that experienced a Mw~5.4 earthquake driven by an upper-crustal dike intrusion in May 2009. This volcanic field has exhibited numerous forms of volcanic seismicity both prior to and since the 2009 dike intrusion. Significantly, earthquakes within the lithospheric mantle and, rarely, the lower crust are present in the two-decade long...
Implications of physics-based M9 ground motions on liquefaction-induced damage in the Cascadia Subduction Zone: Looking forward and backward
Given the likelihood of future M9 Cascadia Subduction Zone (CSZ) earthquakes, various estimates of the resulting, regional ground motions have been made, including a suite of 30 physics-based simulations that reflect key modeling uncertainties. However, because the last CSZ interface rupture occurred in 1700 CE, the shaking expected in such an event is especially uncertain, as are the...
Science
Public kickoff webinar: 2026 National Seismic Hazard Models for Guam & Northern Mariana Islands and American Samoa
Monday, February 24, 2025 2:00-4:00 pm MST A Virtual Meeting
M 6.9 October 17, 1989 Loma Prieta Earthquake
The 1989 Loma Prieta earthquake ended decades of tranquility in the San Francisco Bay region. It was a wakeup call to prepare for the potentially even more devastating shocks that are inevitable in the future. Since 1989, the work of the U.S. Geological Survey and other organizations has improved understanding of the seismic threat in the Bay region, promoted awareness of earthquake hazards, and...
Earthquake Response and Investigations
Post-earthquake scientific and engineering investigations are undertaken by the USGS and its partners to capture critical information to understand the causes and impacts of the event, lessons from which can substantially improve the Nation’s resilience after future earthquakes.
