New Madrid earthquakes of 1811–12 | History, Possible Causes & Modern-day Risk | Britannica
Strong Shaking Reported After New Madrid Seismic Zone Quake Today in Missouri
Is Missouri's latest earthquake cause for concern?
On Shaky Ground: The New Madrid Earthquakes of 1811-1812 (Volume 1) ( Missouri Heritage Readers): Bagnall, Norma Hayes: 9780826210548: Amazon.com: Books
What can the recent Kentucky tornado disaster teach us about earthquake early warning? | Pacific Northwest Seismic Network