The New Madrid Earthquake
- Information, links and eye witness accounts concerning the New Madrid Fault zone.
- http://www.hsv.com/genlintr/newmadrd/

Major Faults of Puget Sound
- Fault map of the Puget Sound shows the approximate locations of major faults in the Puget Sound region of Western Washington
- http://www.geophys.washington.edu/SEIS/PNSN/INFO_GENERAL/puget_faults.html

Mississippi Valley Earthquakes on the New Madrid Fault
- Information on this mid-continent seismic zone, including the historic New Madrid earthquake of 1811 that reversed the flow of the Mississippi River.
- http://quake.wr.usgs.gov/QUAKES/FactSheets/NewMadrid/