Mission Areas

Natural Hazards

Every year in the United States, natural hazards threaten lives and livelihoods and result in billions of dollars in damage. We work with many partners to monitor, assess, and conduct targeted research on a wide range of natural hazards so that policymakers and the public have the understanding they need to enhance preparedness, response, and resilience.

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Reducing Risk

Reducing Risk

USGS scientists develop new products to make science available to the public, emergency managers, and decision-makers. These efforts increase public safety and reduce risk and economic losses caused by natural hazards.

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Hazard Research

Hazard Research

USGS scientists conduct research to understand earth processes and the natural hazards they can pose to society in order to increase public safety and reduce risk and economic loss.

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News

Date published: January 28, 2020

Large M7.7 Caribbean Quake Felt as Far Away as Florida

On January 28, 2020, a magnitude 7.7 earthquake struck in the Caribbean Sea, roughly equidistant from the costs of Jamaica, Cuba and the Cayman Islands. Seismic instruments immediately detected the earthquake that originated at a depth of about 6.2 miles (10 km).

Date published: January 27, 2020

Special Issue Highlights One of the Most Extensive Gas Hydrate Datasets Ever Collected

The USGS and its research partners in India and Japan have reported on one of the most extensive data sets ever collected on the occurrence of natural gas hydrate.

Date published: January 23, 2020

Catalog Shows Complex Rupturing During 2019 Ridgecrest Sequence

The 2019 Ridgecrest earthquake sequence, which startled nearby California residents over the 4 July holiday with magnitude 6.4 and magnitude 7.1 earthquakes, included 34,091 earthquakes overall, detailed in a high-resolution catalog created for the sequence.

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Publications

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Year Published: 2020

A high-resolution seismic catalog for the initial 2019 Ridgecrest Earthquake sequence: Foreshocks, aftershocks, and faulting complexity

I use template matching and precise relative relocation techniques to develop a high-resolution earthquake catalog for the initial portion of the 2019 Ridgecrest earthquake sequence, from July 4-16, encompassing the foreshock sequence and the first 10+ days of aftershocks following the Mw 7.1 mainshock. Using 13,525 routinely cataloged events as...

Shelly, David R.

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Year Published: 2020

U.S. Geological Survey Earthquake Science Center

The mission of the U.S. Geological Survey (USGS) Earthquake Science Center is to collect a wide range of data on earthquakes, faults, and crustal deformation; conduct research to increase our understanding of earthquake source processes, occurrence, and effects; and synthesize this knowledge into probabilistic seismic hazard assessments,...

Hickman, Stephen H.
This publication is available at https://pubs.er.usgs.gov/publication/fs20193067. After the Digital Object Identifier and product metadata have been registered by Crossref, the official URL will be https://doi.org/10.3133/fs20193067.

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Year Published: 2020

Establishing high-frequency noise baselines to 100 Hz based on millions of power spectra from IRIS MUSTANG

Advances in seismic instrumentation have enabled data to be recorded at increasing sample rates. This has in turn created a need to establish higher-frequency baselines for assessing data quality, as the widely-used New High (NHNM) and Low Noise Models (NLNM) of Peterson (1993) do not extend to frequencies above 10 Hz. To provide a baseline for...

Wolin, Emily; McNamara, Daniel