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Science 29 April 1994:
Vol. 264. no. 5159, pp. 686 - 688
DOI: 10.1126/science.264.5159.686
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Articles

A Seismotectonic Model for the 300-Kilometer-Long Eastern Tennessee Seismic Zone

Christine A. Powell 1, G. A. Bollinger 2, Martin C. Chapman 2, Matthew S. Sibol 2, Arch C. Johnston 3, and Russell L. Wheeler 4

1 Department of Geology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3315, USA.
2 Seismological Observatory, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
3 Center for Earthquake Research and Information, Memphis State University, Memphis, TN 38152, USA.
4 U. S. Geological Survey, P.O. Box 25046, M.S. 966, Denver Federal Center, Denver, CO 80225, USA.

Ten years of monitoring microearthquakes with a regional seismic network has revealed the presence of a well-defined, linear zone of seismic activity in eastern Tennessee. This zone produced the second highest release of seismic strain energy in the United States east of the Rocky Mountains during the last decade, when normalized by crustal area. The data indicate that seismicity produced by regional, intraplate stresses is now concentrating near the boundary between relatively strong and weak basement crustal blocks.

Submitted on November 3, 1993
Accepted on March 15, 1994


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Fault Orientation in the Eastern Tennessee Seismic Zone: A Study Using the Double-Difference Earthquake Location Algorithm.
M. M. Dunn and M. C. Chapman (2006)
Seismological Research Letters 77, 494-504
   Abstract »    Full Text »    PDF »
A statistical analysis of earthquake focal mechanisms and epicenter locations in the eastern Tennessee seismic zone.
M. C. Chapman, C. A. Powell, G. Vlahovic, and M. S. Sibol (1997)
Bulletin of the Seismological Society of America 87, 1522-1536
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)