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Significant Earthquakes, Past 30 days
Significant Earthquakes, Past 30 days
6.1
60 km SSW of La Libertad, El Salvador
2024-08-28 21:57:57 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
33.9 km
5.4
52 km W of Sines, Portugal
2024-08-26 04:11:39 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
17.5 km
6.9
72 km W of Pangai, Tonga
2024-08-25 23:29:09 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
106.7 km
7.0
102 km E of Petropavlovsk-Kamchatsky, Russia
2024-08-17 19:10:27 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
29.0 km
6.1
30 km SE of Hualien City, Taiwan
2024-08-15 23:35:54 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
14.0 km
3.6
6 km NW of Lakeland Village, CA
2024-08-15 16:39:32 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
8.4 km
4.4
4 km SSE of Highland Park, CA
2024-08-12 19:20:25 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
11.0 km
6.5
151 km E of Dolinsk, Russia
2024-08-10 03:28:32 (UTC)
Pager Alert Level: Green
MMI: III (Weak Shaking)
400.8 km
7.1
2024 Hyuganada Sea, Japan Earthquake
2024-08-08 07:42:55 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
24.0 km
4.4
22 km NW of Grapevine, CA
2024-08-08 02:09:15 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
11.6 km
5.2
24 km SW of Lamont, CA
2024-08-07 04:09:57 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
11.6 km
6.3
41 km E of Barcelona, Philippines
2024-08-03 04:20:26 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
13.4 km
6.8
20 km E of Barcelona, Philippines
2024-08-02 22:23:03 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
35.0 km
6.1
60 km SSW of La Libertad, El Salvador
2024-08-28 21:57:57 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
33.9 km
5.4
52 km W of Sines, Portugal
2024-08-26 04:11:39 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
17.5 km
6.9
72 km W of Pangai, Tonga
2024-08-25 23:29:09 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
106.7 km
7.0
102 km E of Petropavlovsk-Kamchatsky, Russia
2024-08-17 19:10:27 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
29.0 km
6.1
30 km SE of Hualien City, Taiwan
2024-08-15 23:35:54 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
14.0 km
3.6
6 km NW of Lakeland Village, CA
2024-08-15 16:39:32 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
8.4 km
4.4
4 km SSE of Highland Park, CA
2024-08-12 19:20:25 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
11.0 km
6.5
151 km E of Dolinsk, Russia
2024-08-10 03:28:32 (UTC)
Pager Alert Level: Green
MMI: III (Weak Shaking)
400.8 km
7.1
2024 Hyuganada Sea, Japan Earthquake
2024-08-08 07:42:55 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
24.0 km
4.4
22 km NW of Grapevine, CA
2024-08-08 02:09:15 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
11.6 km
5.2
24 km SW of Lamont, CA
2024-08-07 04:09:57 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
11.6 km
6.3
41 km E of Barcelona, Philippines
2024-08-03 04:20:26 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
13.4 km
6.8
20 km E of Barcelona, Philippines
2024-08-02 22:23:03 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
35.0 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
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News
The 1964 Great Alaska Earthquake Anchorage Walking Tour
The 1964 Great Alaska Earthquake Anchorage Walking Tour
First study to quantify global earthquake risk to mineral supplies
First study to quantify global earthquake risk to mineral supplies
Rapid Response Seafloor Seismology
Rapid Response Seafloor Seismology
Publications
Plan to coordinate post-earthquake investigations supported by the National Earthquake Hazards Reduction Program (NEHRP)
IntroductionThis report presents a plan supported by the National Earthquake Hazards Reduction Program (NEHRP) to coordinate domestic and international post-earthquake investigations (herein called “the Plan”). Post-earthquake scientific and engineering investigations are undertaken to capture critical information to understand the causes and impacts of the event, lessons from which can substantia
Aftershock forecasting
Aftershocks can compound the impacts of a major earthquake, disrupting recovery efforts and potentially further damaging weakened buildings and infrastructure. Forecasts of the probability of aftershocks can therefore aid decision-making during earthquake response and recovery. Several countries issue authoritative aftershock forecasts. Most aftershock forecasts are based on simple statistical
Collision structures of the Prince William terrane and Chugach terrane docking along the Shumagin and Unimak convergent margins, Alaska, USA
Western Alaska’s convergent margins are composed of tectonostratigraphic terranes. On land, terrane assembly is recognized along boundaries or sutures between neighboring geologic elements with distinctly different origins. In marine areas where rock outcrops are covered by sediment, recognizing terrane sutures is problematic. A fault in seismic dip line 5 of the ALEUT project has been interpreted
Science
Alaska Earthquake and Tsunami Hazards
Alaska has more large earthquakes than the rest of the United States combined. More than three-quarters of the state’s population live in an area that can experience a magnitude 7 earthquake. Our research provides objective science that helps stakeholders prepare for and mitigate the effects of future earthquakes and tsunamis, which bolsters the economic health and well-being of Alaska and the...
M6.0 South Napa, California Earthquake – August 24, 2014
The M6.0 South Napa, California Earthquake was the largest earthquake to strike the San Francisco Bay Area in over 25 years. It caused significant damage to over 100 structures and was widely felt across the region.
USGS National Seismic Hazard Model User Needs Workshop
The National Seismic Hazard Model Project (NSHMP) will be summarizing the 2023 National Seismic Hazard Model (NSHM) and presenting a preliminary future vision for the 2029 NSHM release. Day 1 will consist primarily of presentations as well as discussion and questions, and Day 2 will be focused on user participation.
