- The Great New Madrid Earthquake
 - Article about the 1811 and 1812 earthquakes on the New Madrid Fault, halfway between St. Louis and Memphis beneath the Mississippi. Includes eyewitness accounts, current seismic work, maps, and more. - New Madrid Compendium, The
- Features newspaper articles, scientific articles, folklore, maps, and eyewitness accounts related to the New Madrid earthquakes of 1811-1812.
- New Madrid Earthquake - Wikipedia
- Article about the 1812 New Madrid Earthquake, one of the largest earthquakes ever recorded in the contiguous United States.
- USGS: New Madrid 1811-1812
- Describes the series of earthquakes that shook the area around New Madrid, MO, between December 16, 1811 and February 7, 1812.
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