Geologic Hazards Science Center
Latest Earthquakes
Latest Earthquakes
6.0
13 km S of Honaunau-Napoopoo, Hawaii
2026-05-23 07:46:01 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
22.6 km
6.6
10.0 km
5.1
26 km NW of Liuzhou, China
2026-05-18 13:44:26 (UTC)
Pager Alert Level: Orange
MMI: VII (Very Strong Shaking)
10.0 km
6.0
60 km ESE of Codrington, Antigua and Barbuda
2026-05-16 14:50:06 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
51.2 km
6.7
49 km ESE of Ōfunato, Japan
2026-05-15 11:22:02 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
43.6 km
4.7
3 km WSW of Brawley, CA
2026-05-10 07:10:21 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
14.5 km
5.2
19 km SE of Silver Springs, Nevada
2026-05-01 08:17:20 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
5.0 km
6.0
13 km S of Honaunau-Napoopoo, Hawaii
2026-05-23 07:46:01 (UTC)
Pager Alert Level: Yellow
MMI: VII (Very Strong Shaking)
22.6 km
6.6
10.0 km
5.1
26 km NW of Liuzhou, China
2026-05-18 13:44:26 (UTC)
Pager Alert Level: Orange
MMI: VII (Very Strong Shaking)
10.0 km
6.0
60 km ESE of Codrington, Antigua and Barbuda
2026-05-16 14:50:06 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
51.2 km
6.7
49 km ESE of Ōfunato, Japan
2026-05-15 11:22:02 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
43.6 km
4.7
3 km WSW of Brawley, CA
2026-05-10 07:10:21 (UTC)
Pager Alert Level: Green
MMI: V (Moderate Shaking)
14.5 km
5.2
19 km SE of Silver Springs, Nevada
2026-05-01 08:17:20 (UTC)
Pager Alert Level: Green
MMI: VI (Strong Shaking)
5.0 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
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
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
Publications
The United States Magnetotelluric Array and the National Impedance Map The United States Magnetotelluric Array and the National Impedance Map
The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long-period magnetotelluric stations covering the entirety of the contiguous United States on a quasi-regular 70 km grid. Funding across multiple federal agencies was critical to sustaining this effort to its completion. Important components of the project included...
Asynchronous landslide seasonality across the United States Asynchronous landslide seasonality across the United States
Mid-range landslide outlooks can facilitate weather-related landslide preparedness and disaster response planning, but seasonal landslide activity remains poorly quantified at continental scales. Leveraging >55,000 reported landslides from across the United States (U.S.), we used circular statistics to quantify landslide seasonality in 67 National Weather Service County Warning Areas...
Surface rupture and slip distribution of the 2025 Mw7.7 Mandalay earthquake and updated length scaling of supershear earthquakes Surface rupture and slip distribution of the 2025 Mw7.7 Mandalay earthquake and updated length scaling of supershear earthquakes
The 2025 Mw 7.7 Mandalay, Burma (Myanmar), earthquake ruptured 475 km of the central Sagaing fault and is the longest continental strike-slip rupture on record. The observed rupture length is 1.6–4.7 times the value expected (100–300 km) from existing length-magnitude scaling relations for strike-slip earthquakes. The earthquake resulted from shallow dextral faulting and ruptured...