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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Publications

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Year Published: 2019

Satellite observations of surface deformation at the Coso Geothermal Field, California

Surface deformation time series and rates are identified at the Coso Geothermal Field (CGF) and surrounding areas by applying interferometric synthetic aperture radar (InSAR) to satellite scenes from Envisat (June 2004 ̶ October 2010) and Sentinel (November 2014 – April 2018). The measurements are done in the line of sight (LOS) to each...

Eneva, Mariana; Barbour, Andrew; Adams, David; Hsiao, Vicky; Blake, Kelly; Falorni, Giacomo; Locatelli, Roberto

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Year Published: 2019

Landscape change associated with the upper Scenic Drive landslide, La Honda, California, January 10–June 28, 2017

La Honda, California, is a small town in unincorporated San Mateo County, located on the west edge of the San Francisco Peninsula in the Santa Cruz Mountains, between San Francisco and San Jose. The Scenic Drive area of La Honda has experienced several past episodes of landslide motion, which were documented in 1998, 2005, and 2006. This report...

Pickering, Alexandra J.; Prentice, Carol S.; DeLong, Stephen B.
Pickering, A.J., Prentice, C.S., and DeLong, S.B., 2019, Landscape change associated with the upper Scenic Drive landslide, La Honda, California, January 10–June 28, 2017: U.S. Geological Survey Open-File Report 2019–1024, 17 p., 1 sheet, scale 1:400, https://doi.org/10.3133/ofr20191024.

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Year Published: 2019

Determining Moho depth beneath sedimentary basins using regional Pn multiples

The study of the Moho beneath thick sedimentary basins involving natural earthquakes is challenging, as low‐velocity materials often cause strong reverberations that mask Moho signals. Here, we develop a method to determine the depth of the Moho by taking advantage of the presence of the sediments. The method utilizes the first Pn crustal multiple...

Yu, C.; Zhan, Z.; Hauksson, E.; Cochran, Elizabeth S.; Helmberger, D.