Mississippi Valley Earthquake studies


  • Anonymous


Studies on the cause of earthquakes in the central Mississippi Valley region have been intensified in response to the Earthquake Hazards Reduction Act of 1977.

Robert L. Wesson, chief of the U.S. Geological Survey Office of Earthquake Studies at the Survey's National Center, Reston, Virginia, said the reason for the comprehensive study is that the great earthquakes that occurred in the region in 1811 and 1812 are still unexplained. Perhaps the most violent series of earthquakes in United States history was centered in southeast Missouri near the small town of New Madrid, about midway between St. Louis, Missouri, and Memphis, Tennessee. The first, on December 16, 1811, was followed by two other principal shocks, one on January 23, 1812, and the other on February 7, 1812.