FAQ - Frequently Asked Questions
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Significant Earthquakes, Past 30 Days
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.
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Information about real-time earthquakes, online catalog search of archives, seismicity maps and statistics.
US faults, information about seismic hazards in various areas, tools for seismic design values.
Data & Products
Monitoring, station, and other various seismic data available for download. Data products to view and download.
The science of earthquakes, FAQ, glossary, links to earthquake topics, Earthquakes for kids.
Global, national and regional networks recording earthquakes and crustal movements, maps, station information, real-time seismic waveforms.
Research projects in the Earthquake Hazards Program, external research support, science center activities, software.