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/