New Madrid Seismic Zone : An area of continuing seismic activity along the Mississippi River in Tennessee and Missouri. Also, the location of the epicenters of the four great New Madrid earthquakes of 1811-12
Georgia Emergency Management Agency, Emergency Manager's Guide to Earthquakes in Georgia, Glossary of Earthquake Terms, Prepared by: Leland Timothy Long (School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta) for Georgia Emergency Management Agency, Georgia, USA 1999. http://quake.eas.gatech.edu/EMguide/EMguide.htm, (ND/ Erthq - Amer) {76}