Geologic Hazards Science Center
Latest Earthquakes
Latest Earthquakes
6.5
126 km NNE of Teluknaga, Indonesia
2026-09-11 21:23:56 (UTC)
Pager Alert Level: Green
MMI: III (Weak Shaking)
372.0 km
3.8
20 km E of Castle Rock, Washington
2026-09-05 11:09:28 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
17.7 km
5.4
21 km WNW of Jiangyou, China
2026-09-03 11:39:42 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
10.0 km
6.3
84 km SSW of Nikolski, Alaska
2026-09-03 11:17:24 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
35.0 km
5.2
4.9
4 km NNE of Jalālābād, Afghanistan
2026-08-25 01:18:46 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
10.0 km
5.8
61.0 km
6.7
99.0 km
6.5
126 km NNE of Teluknaga, Indonesia
2026-09-11 21:23:56 (UTC)
Pager Alert Level: Green
MMI: III (Weak Shaking)
372.0 km
3.8
20 km E of Castle Rock, Washington
2026-09-05 11:09:28 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
17.7 km
5.4
21 km WNW of Jiangyou, China
2026-09-03 11:39:42 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
10.0 km
6.3
84 km SSW of Nikolski, Alaska
2026-09-03 11:17:24 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
35.0 km
5.2
4.9
4 km NNE of Jalālābād, Afghanistan
2026-08-25 01:18:46 (UTC)
Pager Alert Level: Yellow
MMI: VI (Strong Shaking)
10.0 km
5.8
61.0 km
6.7
99.0 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
Great Salt Lake sediments record thousands of years of earthquake history
Great Salt Lake sediments record thousands of years of earthquake history
The Loneliest Seismometers on Earth
The Loneliest Seismometers on Earth
What a Solar Superstorm Could Mean for the US
What a Solar Superstorm Could Mean for the US
Publications
Efficient physics‐informed ground‐motion simulations with reduced‐order models: CyberShake implications and high‐resolution site terms for southern San Andreas fault earthquakes Efficient physics‐informed ground‐motion simulations with reduced‐order models: CyberShake implications and high‐resolution site terms for southern San Andreas fault earthquakes
Recent advances in Probabilistic Seismic Hazard Analysis (PSHA) leverage physics‐based ground‐motion simulations to estimate seismic hazard, such as the CyberShake project. However, computational costs quickly escalate when performing PSHA for numerous faults or sites and can become prohibitively expensive. To reduce computational demands, CyberShake uses reciprocity and interpolates...
Regional models for postfire debris-flow likelihood and rainfall thresholds across the western United States Regional models for postfire debris-flow likelihood and rainfall thresholds across the western United States
The U.S. Geological Survey (USGS) uses an empirical model developed with logistic regression (the ‘M1’ model) to rapidly assess debris-flow likelihood and to identify quantitative rainfall thresholds for debris flows after wildfire in the western United States. The M1 model was calibrated to a debris-flow inventory from southern California (United States) and has been applied throughout...
Numerical modeling of Late Pleistocene to Holocene earthquake-induced progressive rock slope damage in the paraglacial Serpentine valley, Prince William Sound, Alaska Numerical modeling of Late Pleistocene to Holocene earthquake-induced progressive rock slope damage in the paraglacial Serpentine valley, Prince William Sound, Alaska
Landslides in deglaciating fjords pose a potential tsunami threat to nearby communities; however, processes contributing to long-term progressive rock damage and landslide conditioning remain poorly constrained in paraglacial settings. Here, we analyse the role of earthquake-induced rock mass damage over late Pleistocene to Holocene time scales, as a conditioning factor for modern...