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Rapid intraplate strain accumulation in the New Madrid seismic zone

Science

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Abstract

Remeasurement of a triangulation network in the southern part of the New Madrid seismic zone with the Global Positioning System has revealed rapid crustal strain accumulation since the 1950s. This area experienced three large (moment magnitudes >8) earthquakes in 1811 to 1812. The orientation and sense of shear is consistent with right-lateral strike slip motion along a northeast-trending fault zone (as indicated by current seismicity). Detection of crustal strain accumulation may be a useful discriminant for identifying areas where potentially damaging intraplate earthquakes may occur despite the absence of large earthquakes during historic time.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Rapid intraplate strain accumulation in the New Madrid seismic zone
Series title:
Science
Volume
257
Issue:
5077
Year Published:
1992
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1666
Last page:
1669
Number of Pages:
4