Suggested Earthquake Links from the January 30,2005 lecture on Earthquakes by 
by   Val Chandler, PhD at the Minnesota Geological Survey.

National Earthquake Information Center *U S Geological Survey

http://neic.usgs.gov/

The grand-daddy of earthquake sites, lots of good surfing here.

Earthquake Hazards Program (U S Geological Survey)

http://earthquake.usgs.gov/

Good site for recent earthquakes and seismic hazard assessment.

The IRIS (Incorporated Research Institutions for Seismology) Consortium

www.iris.edu

www.iris.edu/seismon  (for Seismic Monitor)

Good site for general information on earthquakes.  Seismic Monitor is well work a look.

Berkeley Seismological laboratory

http://seismo.berkeley.edu

Good for information on California earthquakes and earthquakes in general.

The Center for Earthquake Research and Information, the University of Memphis

www.ceri.memphis.edu

or

www.ceri.memphis.edu/usgs

Good sites for the NEW Madrid Earthquake zone

The Central United States Earthquake consortium

www.cusec.org

More of a government services site, but some general information on Midwestern earthquakes is available

Mid-American Earthquake Center

http://mae.ce.uiuc.edu

Focused on engineering aspects of earthquakes in the Midwest

Google Earth – a great site whether you are interested in earthquakes or not.

http://earth.google.com

One option on the free download software is an overlay of earthquake epicenters.

Minnesota Geological Survey

www.geo.umn.edu/mgs

For questions on Minnesota geology