USGS Earthquake Hazards Program, responsible for monitoring , reporting, and researching earthquakes and earthquake hazards. Similar Risk Exists Today. A risk of a similar sequence of earthquakes exists in the New Madrid Seismic Zone today and threatens Alabama, Arkansas, Illinois, Indiana. Here you will find listings of over 600 references that are related to the New Madrid earthquakes of 1811-1812.. Earthquakes of 1811-1812. 1811, December 16, 08:15 UTC. Northeast Arkansas Magnitude ~7.2 - 8.1 On the basis of the large area of damage (600,000 square. Earthquake unrest currently on the rise. West Pacific showing excessive activity over the past 7 days.. also, movement showing along the edge of the North. CERI | 3890 Central Ave | Memphis, TN 38152 | Phone: 901-678-2007 | Fax: 901-678-4734. © 2011 Evansville Courier & Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. > Report FROM New Madrid Fault. The underlying cause of New Madrid earthquakes is not well understood, but modern faulting seems to be related to an ancient geologic feature buried under the.
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