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Significant Earthquakes, Past 30 days
Significant Earthquakes, Past 30 days
6.4
17 km WSW of Brisas Barra de Suchiate, Mexico
2024-05-12 11:39:14 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
75.4 km
4.1
4.6 km
6.1
94 km S of Banjar, Indonesia
2024-04-27 16:29:51 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
61.6 km
6.5
503.9 km
6.1
13 km SSW of Hualien City, Taiwan
2024-04-22 18:32:48 (UTC)
Pager Alert Level: Yellow
MMI: VIII (Severe Shaking)
10.0 km
6.1
29 km S of Hualien City, Taiwan
2024-04-22 18:26:53 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
9.0 km
4.3
3.2 km
6.3
17 km WSW of Uwajima, Japan
2024-04-17 14:14:46 (UTC)
Pager Alert Level: Orange
MMI: VIII (Severe Shaking)
25.7 km
6.4
17 km WSW of Brisas Barra de Suchiate, Mexico
2024-05-12 11:39:14 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
75.4 km
4.1
4.6 km
6.1
94 km S of Banjar, Indonesia
2024-04-27 16:29:51 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
61.6 km
6.5
503.9 km
6.1
13 km SSW of Hualien City, Taiwan
2024-04-22 18:32:48 (UTC)
Pager Alert Level: Yellow
MMI: VIII (Severe Shaking)
10.0 km
6.1
29 km S of Hualien City, Taiwan
2024-04-22 18:26:53 (UTC)
Pager Alert Level: Green
MMI: VII (Very Strong Shaking)
9.0 km
4.3
3.2 km
6.3
17 km WSW of Uwajima, Japan
2024-04-17 14:14:46 (UTC)
Pager Alert Level: Orange
MMI: VIII (Severe Shaking)
25.7 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.
News
USGS deploys “aftershock kits” to study Whitehouse Station earthquakes
USGS deploys “aftershock kits” to study Whitehouse Station earthquakes
USGS Seeks Earthquake Hazards Research Proposals
USGS Seeks Earthquake Hazards Research Proposals
Earthquakes can strike faster than a New York minute – What to do when the ground shakes...
Earthquakes can strike faster than a New York minute – What to do when the ground shakes...
Publications
Using open-science workflow tools to produce SCEC CyberShake physics-based probabilistic seismic hazard models
The Statewide (formerly Southern) California Earthquake Center (SCEC) conducts multidisciplinary earthquake system science research that aims to develop predictive models of earthquake processes, and to produce accurate seismic hazard information that can improve societal preparedness and resiliency to earthquake hazards. As part of this program, SCEC has developed the CyberShake platform, which c
Investigating past earthquakes with coral microatolls
Intertidal corals (microatolls) preserve evidence of past uplift or subsidence with annual precision. Microatoll records are particularly useful along subduction zones, and can reveal past earthquake ruptures at a level of detail that is ordinarily limited to the instrumental era.
Evaluation of 2-D shear-wave velocity models and VS30at six strong-motion recording stations in southern California using multichannel analysis of surface waves and refraction tomography
To better understand the potential for amplified ground shaking at sites that house critical infrastructure, the U.S. Geological Survey (USGS) evaluated shear-wave velocities (VS) at six strong-motion recording stations in Southern California Edison facilities in southern California. We calculated VS30 (time-averaged shear-wave velocity in the upper 30 meters [m]), which is a parameter used in gro