New Madrid earthquake 1812
In December of 1811, the largest earthquake ever recorded in American History started. This earthquake, called the New Madrid Earthquake because of its primary location on the New Madrid Fault, near New Madrid, Missouri. From the effects of the 1811-1812 earthquakes, it can be estimated that they had a magnitude of 8.0 or higher on the not yet invented Richter scale. Large areas sank into the earth, new lakes were formed, and the Mississippi River changed its course due to the earthquakes.
The New Madrid Earthquake of 1811 - 1812	by Chad Richards
Mississippi Valley	In the winter of 1811-12, the central Mississippi Valley was struck by three of the most powerful earthquakes in U.S. history. Even today, this region has more earthquakes than any other part of the United States east of the Rocky Mountains.
The Great New Madrid Earthquake
Eye Witness Accounts [3]
1811, December 16, 08:15 UTC. Northeast Arkansas	On the basis of the large area of damage (600,000 square kilometers), the widespread area of perceptibility (5,000,000 square kilometers), and the complex physiographic changes that occurred, the Mississippi River valley earthquakes of 1811-1812 rank as some of the largest in the United States since its settlement by Europeans.
The Missississpi Valley Earthquakes of 1811 and 1812	Shortly after 2 o'clock on the morning of December 16, 1811, the Mississippi River valley was convulsed by an earthquake so severe that it awakened people in cities as distant at Pittsburgh, Pennsylvania, and Norfolk, Virginia. This shock inaugurated what must have been the most frightening sequence of earthquakes ever to occur in the United States.
The English Hills Faults What they mean to Earthquake Risk	The English Hills faults are located on the southeast flank of the Benton Hills in Scott County, Missouri. Originally described by geologists in the 1930s, the faults had been ignored for decades: their very existence had even been challenged.
New Madrid Earthquake last 14 days	New Madrid/Central US Earthquake Map
The Great New Madrid Earthquake	The Great New Madrid Earthquake In the winter of 1811-1812, the central Mississippi Valley was struck by three of the most powerful earthquakes in U. S. history. Even today, this region has more earthquakes than any other part of the United States east of the Rocky Mountains.
IMUA Seminar Discusses the New Madrid Earthquake Regio	New York, NY, October 28, 1998 Ñ The North Central and The Midwest Advisory Committees of Inland Marine Underwriters Association (IMUA) recently held seminars in Chicago and Minneapolis on issues related to the New Madrid region. The seminars covered key underwriting issues that must be considered when contemplating earthquake exposure in that region.
New Madrid County, Missouri - River Heritage Region of Missouri Tourism	A popular destination for day-trippers, New Madrid County offers an array of natural, historic and recreational opportunities unique to Missouri's Bootheel Region.