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Open-File Report 2013–1004

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Workshop on New Madrid Geodesy and the Challenges of Understanding Intraplate Earthquakes

By Oliver Boyd, Eric Calais, John Langbein, Harold Magistrale, Seth Stein, and Mark Zoback

Thumbnail of and link to report PDF (2.27 MB)Abstract

On March 4, 2011, 26 researchers gathered in Norwood, Massachusetts, for a workshop sponsored by the U.S. Geological Survey and FM Global to discuss geodesy in and around the New Madrid seismic zone (NMSZ) and its relation to earthquake hazard. The group addressed the challenge of reconciling current geodetic measurements, which show low present-day surface strain rates, with paleoseismic evidence of recent, relatively frequent, major earthquakes in the region. Several researchers were invited by the organizing committee to give overview presentations while all participants were encouraged to present their most recent ideas. The overview presentations appear in this report along with a set of recommendations.

First posted February 6, 2013

For additional information contact:
Center Director, Geologic Hazards Science Center
U.S. Geological Survey
Box 25046, Mail Stop 966
Denver, CO 80225
http://geohazards.cr.usgs.gov/

 

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Suggested citation:

Boyd, O.S., Calais, Eric, Langbein, John, Magistrale, Harold, Stein, Seth, and Zoback, M.D., 2013, Workshop on New Madrid geodesy and the challenges of understanding intraplate earthquakes: U.S. Geological Survey Open-File Report 2013–1004, 35 p.


Contents

Executive Summary

Introduction

Geodetic Estimates and Uncertainties

Strength and Stress

Models of Stress and Strain

Discussion and Recommendations

Acknowledgments

Participants

Software

References


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