FAQ - Frequently Asked Questions

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Earthquakes Information about real-time earthquakes, online catalog search of archives, seismicity maps and statistics.

Hazards US faults, information about seismic hazards in various areas, tools for seismic design values.

Data Monitoring, station, and other various seismic data available for download.

Learn The science of earthquakes, FAQ, glossary, links to earthquake topics, Earthquakes for kids.

Monitoring Global, national and regional networks recording earthquakes and crustal movements, maps, station information, real-time seismic waveforms.

Research Research projects in the Earthquake Hazards Program, external research support, science center activities, software.

The USGS Earthquake Hazards Program is part of the National Earthquake Hazards Reduction Program (NEHRP), established by Congress in 1977, and the USGS Advanced National Seismic System (ANSS) was established by Congress as a NEHRP facility. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and perform research into the causes and effects of earthquakes.