Council of the National Seismic System has been replaced by the: Advanced National Seismic System History and background of the CNSS may be found on the ANSS pages. An ANSS composite catalog is still at: http://quake.geo.berkeley.edu/cnss Earthworm documents are provided at the main USGS pages: http://gldbrick.cr.usgs.gov. Information and software for the QDDS, CNSSM and Recenteqs systems can be ...

Recent Earthquakes in California and Nevada Long Valley Special Map --- ...

The Pacific Northwest Seismograph Network PNW EARTHQUAKE INFORMATION RECENT EVENTS CATALOG The following catalog is for earthquakes (M ...

Information, links and eye witness accounts concerning the New Madrid Fault zone ...

Major Faults in the Puget Sound An accompanying Fault Map of the Puget Sound shows the approximate locations of major faults in the Puget Sound of Western Washington (Gower and others, 1985, Seismotectonic Map of the Puget Sound Region, Washington , USGS Map I-1613). Many of these faults are inferred indirectly from gravity and magnetic surveys. There is evidence of recent movement on some of ...

Articles, maps, and information on the New Madrid Fault Zone or System and the Great New Madrid Earthquakes of 1811-1812, as well as recent seismic activity.