Geologic Hazards Science Center

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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.

Earthquake Hazards

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.

Landslide Hazards

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.

Geomagnetism

News

Date published: January 17, 2020

As Aftershocks Continue in Puerto Rico, USGS Supports Quake Recovery

A sequence of earthquakes in southwest Puerto Rico continues to affect people living there, with the largest recent aftershock a magnitude 5.2 on Jan. 15. U.S. Geological Survey scientists on the island and the mainland are providing up-to-date scientific information to help the Commonwealth government and the Federal Emergency Management Agency make decisions that protect the public.

Date published: December 11, 2019

USGS provides update for the National Seismic Hazard Model

USGS experts recently released a study that incorporates the latest earthquake science findings into an update of the National Seismic Hazard Model for the “lower-48” United States.  Read the full report here:  https://journals.sagepub.com/doi/full/10.1177/8755293019878199

Date published: November 21, 2019

Extending Rupture History in Grand Tetons National Park (SSA News Release)

"19 November 2019–Hand-dug trenches around Leigh Lake in Grand Teton National Park in Wyoming reveal evidence for a previously unknown surface-faulting earthquake in along the Teton Fault—one occurring about 10,000 years ago." A Seismological Society of America news release covers recent research published by USGS scientists and cooperators.

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Publications

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Year Published: 2020

Seismicity of the Earth 1900–2018

This map illustrates 119 years of global seismicity in the context of global plate tectonics and the Earth’s physiography. Primarily designed for use by earth scientists, engineers, and educators, this map provides a comprehensive overview of strong (magnitude [M] 5.5 and larger) earthquakes since 1900. The map clearly identifies the locations of...

Hayes, Gavin P.; Smoczyk, Gregory M.; Villaseñor, Antonio H.; Furlong, Kevin P.; Benz, Harley M.
Hayes, G.P., Smoczyk, G.M., Villaseñor, A.H., Furlong, K.P., and Benz, H.M, 2020, Seismicity of the Earth 1900–2018: U.S. Geological Survey Scientific Investigations Map 3446, scale 1:22,500,000, https://doi.org/10.3133/sim3446. [Supersedes USGS Scientific Investigations Map 3064.]

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Year Published: 2020

Development of a global seismic risk model

Since 2015 the Global Earthquake Model (GEM) Foundation and its partners have been supporting regional programmes and bilateral collaborations to develop an open global earthquake risk model. These efforts led to the development of a repository of probabilistic seismic hazard models, a global exposure dataset comprising structural and occupancy...

Silva, Vitor; Amo-Oduro, Desmond; Calderon, Alejandro; Costa, Catarina; Dabbeek, Jamal; Despotaki, Venetia; Martins, Luis; Pagani, Marco; Rao, Anirudh; Simionato, Michele; Viganò, Daniele; Yepes-Estrada, Catalina; Acevedo, Ana Beatriz; Crowley, Helen; Horspool, Nick; Jaiswal, Kishor; Journeay, Murray; Pittore, Massimiliano

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Year Published: 2020

A brief introduction to seismic instrumentation: Where does my data come from?

Modern seismology has been able to take advantage of several technological advances. These include feedback loops in the seismometer, specialized digitizers with absolute timing, and compression formats for storing data. While all of these advances have helped to improve the field, they can also leave newcomers a bit confused. Our goal here is...

Ringler, Adam T.; Bastien, Patrick