Example image of eyePlorer eyePlorer map for '1812 New Madrid earthquake': Contiguous United States Intraplate earthquake Louisiana Territory Mississippi River Missouri New Madrid, Missouri 1906 San Francisco earthquake Moment magnitude scale Memphis, Tennessee Mercalli intensity scale Bootheel Meizoseismal area St. Louis, Missouri Fault (geology) Reelfoot Lake Boston New York City Enclave and exclave Kentucky Bend Tennessee Sand volcano Toronto Washington, D.C. Missouri Territory William Clark (explorer) New Madrid Seismic Zone Rodinia Supercontinent Aulacogen Pangaea Crust (geology) San Andreas Fault Earthquake engineering Natural disaster List of earthquakes in the United States United States Geological Survey 1812 in science John Hardeman Walker Lake Isom Lucy Jefferson Reverie, Tennessee The Rift (novel) 1812 1812 in the United States Charles Lucas (Missouri) Creek War Ellis Park Racecourse Normandy, Missouri Caddo Lake 1811 in the United States