Image:New Madrid and Wabash seizmic zones-USGS.png

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Description

This map of the New Madrid and Wabash Valley seismic zones shows  earthquakes as circles. Red circles indicate earthquakes that occurred from 1974 to  2002 with magnitudes larger than 2.5 located using modern instruments (University  of Memphis). Green circles denote earthquakes that occurred prior to 1974 (USGS  Professional Paper 1527). Larger earthquakes are represented by larger circles.
Source from http://pubs.usgs.gov/fs/2006/3125/pdf/FS06-3125_508.pdf
Date

January 2007
Author

Joan Gomberg and Eugene Schweig
Permission
(Reusing this image)
Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of Interior. For more information, see the official USGS copyright policy


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current02:30, 25 April 2008748×819 (467 KB)Kbh3rd ({{Information |Description=This map of the New Madrid and Wabash Valley seismic zones shows  earthquakes as circles. Red circles indicate earthquakes that occurred from 1974 to  2002 with magnitudes la)
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