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125 Years of Science for America - 1879 to 2004
About USGS  Our Science  Publications  Education  Newsroom

Still Shaking After 25 Years . . .

October 7, 2002, is the 25th anniversary of the passage of the Earthquake Hazards Reduction Act of 1977, which created the National Earthquake Hazards Reduction Program--better known as NEHRP.

In the 25 years since NEHRP was created, scientists have made significant strides in the understanding of earthquake mechanics and of how people can live safely on our dynamic planet. We have made progress in:

The purpose of NEHRP is to reduce the risks of life and property from future earthquakes. The USGS, the National Science Foundation, the National Institute of Standards and Technology, and the Federal Emergency Management Agency are the four primary NEHRP federal partners; FEMA has been designated the lead agency, with responsibility for planning and coordinating the Program.

Links to USGS earthquake information

General information about USGS Earthquake Hazards Program

Earthquakes by State

Today in Earthquake History
Find out what significant earthquakes occurred today--or any day!

Preparing for an earthquake

Earthquake facts and lists

Earthquake photographs

National Earthquake Hazard Reduction Program (NEHRP) Maps -- These maps are based on the USGS probabilistic hazard maps with additional modifications incorporating deterministic ground motions in selected areas and the application of engineering judgment.

Other earthquake links


Incorporated Research Institutions for Seismology

Natural Hazards Research and Applications Information Center

National Science Foundation
Civil and Mechanical Systems, Engineering Directorate
Earth Sciences, Geosciences Directorate
Social and Economic Sciences, Social, Behavioral and Economic Sciences Directorate

Network for Earthquake Engineering Simulation

Southern California Earthquake Center

University Navstar Consortium

Virtual Field Trips

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