Geologic Hazards Science Center
Latest Earthquakes
Latest Earthquakes
5.8
138 km NNW of Tumxuk, China
2025-12-04 07:44:07 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
10.0 km
3.3
4.8 km
4.0
5 km S of San Juan Bautista, CA
2025-11-27 20:57:38 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
8.2 km
6.0
12 km WNW of Susitna, Alaska
2025-11-27 17:11:29 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
69.4 km
6.6
45 km WNW of Sinabang, Indonesia
2025-11-27 04:56:27 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
25.4 km
4.0
2.9 km
4.9
10 km NW of Beluga, Alaska
2025-11-22 15:38:56 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
61.7 km
5.4
14 km SSW of Narsingdi, Bangladesh
2025-11-21 04:38:29 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
27.0 km
4.1
7 km W of Templeton, CA
2025-11-18 17:54:30 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
4.9 km
3.5
4 km SSW of Vallejo, CA
2025-11-13 20:41:16 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
9.0 km
6.4
117 km E of Yamada, Japan
2025-11-09 08:54:37 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
10.0 km
6.8
122 km E of Yamada, Japan
2025-11-09 08:03:39 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
18.0 km
5.8
138 km NNW of Tumxuk, China
2025-12-04 07:44:07 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
10.0 km
3.3
4.8 km
4.0
5 km S of San Juan Bautista, CA
2025-11-27 20:57:38 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
8.2 km
6.0
12 km WNW of Susitna, Alaska
2025-11-27 17:11:29 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
69.4 km
6.6
45 km WNW of Sinabang, Indonesia
2025-11-27 04:56:27 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
25.4 km
4.0
2.9 km
4.9
10 km NW of Beluga, Alaska
2025-11-22 15:38:56 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
61.7 km
5.4
14 km SSW of Narsingdi, Bangladesh
2025-11-21 04:38:29 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
27.0 km
4.1
7 km W of Templeton, CA
2025-11-18 17:54:30 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
4.9 km
3.5
4 km SSW of Vallejo, CA
2025-11-13 20:41:16 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
9.0 km
6.4
117 km E of Yamada, Japan
2025-11-09 08:54:37 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
10.0 km
6.8
122 km E of Yamada, Japan
2025-11-09 08:03:39 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
18.0 km
Geologic Hazards Science Center
The Geologic Hazards Science Center (GHSC), on the Colorado School of Mines campus, is home to the National Earthquake Information Center (NEIC), many scientists in the Earthquake Hazards Program and Landslide Hazards Program, as well as the Geomagnetism Program staff.
Earthquake Hazards Program
Earthquake Hazards Program
The Earthquake Hazards Program provides research and information products for earthquake loss reduction, including hazard and risk assessments, comprehensive real-time earthquake monitoring, and public outreach.
Landslide Hazards Program
Landslide Hazards Program
The National Landslide Hazards Program strives to reduce long-term losses from landslide hazards by improving our understanding of the causes of ground failure and suggesting mitigation strategies.
Geomagnetism Program
Geomagnetism Program
The Geomagnetism Program provides continuous records of magnetic field variations; disseminates magnetic data; and conducts research into the nature of geomagnetic variations for purposes of scientific understanding and hazard mitigation.
News
USGS Awards a Dozen Landslide Risk Reduction Grants to Enhance Public Safety and Hazard Preparedness Nationwide
USGS Awards a Dozen Landslide Risk Reduction Grants to Enhance Public Safety and Hazard Preparedness Nationwide
USGS Research Links Weather Extremes to Coastal Sediment Supply in California
USGS Research Links Weather Extremes to Coastal Sediment Supply in California
Even small lakes can tell big earthquake stories in the Yellowstone region
Even small lakes can tell big earthquake stories in the Yellowstone region
Publications
U.S. Geological Survey geomagnetic variometer data: Capitalizing on seismic infrastructure U.S. Geological Survey geomagnetic variometer data: Capitalizing on seismic infrastructure
The U.S. Geological Survey’s Geomagnetism Program is collaborating with the Earthquake Hazards Program and Global Seismographic Network Program to densify magnetic field observations. This collaboration focuses on the installation of magnetometers, or magnetic variometers, at existing seismic stations. Along with improving the density of space weather observations for hazard monitoring...
Ultralong, supershear rupture of the 2025 Mw 7.7 Mandalay earthquake reveals unaccounted risk Ultralong, supershear rupture of the 2025 Mw 7.7 Mandalay earthquake reveals unaccounted risk
The 28 March 2025 moment magnitude (Mw) 7.7 earthquake in Mandalay, Burma (Myanmar), ruptured 475 kilometers of the Sagaing Fault, which was more than twice the length predicted by magnitude scaling relationships. Kinematic slip models and observation of a Rayleigh Mach wave that passed through parts of Thailand confirmed that rupture occurred at supershear velocities of greater than 5...
Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model Subduction zone earthquake catalog separation tool: Implementation in the USGS 2025 Puerto Rico and U.S. Virgin Islands National Seismic Hazard Model
The U.S. Geological Survey (USGS) periodically releases updates to National Seismic Hazard Model (NSHM) for the United States and its territories leveraging current scientific knowledge and methodologies to guide public policy, building codes, and risk assessments regarding potential ground shaking due to earthquakes that may result in infrastructure damage. In subduction zones, there is...