Earthquake Hazards Program

USGS seismologist Elizabeth Cochran studied the performance of Mexico City’s earthquake early warning system,  during devastating Sept. 19, 2017 event

The USGS has up-to-date details on the November 30, 2017 event.

The USGS has up-to-date details on the November 12, 2017 event.

Do you know what to do the moment the ground starts shaking? Drop, Cover, and Hold On!

Just after Labor Day, U.S. Geological Survey field crews began digging a trench within the Jackson Hole Mountain Resort ski area, on the lower reaches of Buffalo Bowl. 

A magnitude 8.2 earthquake struck offshore Chiapas, Mexico on September 7, 2017 at 11:49 local time (September 8 at 04:49UTC).

The U.S. Geological Survey awarded approximately $4.9 million this week to six universities and a university-governed non-profit, to support transitioning the west coast “ShakeAlert” earthquake early warning system into a production system.

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance in informing the local communities is appreciated.

After the next significant earthquake, many sources will be disseminating information from a variety of accounts, tools and services.

A new U.S. Geological Survey-led study suggests that earthquake-related deformation just below the Earth's surface can be quite different from how it is expressed at the surface.

The USGS has up-to-date details on the July 6, 2017 event.