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Magnitude scaling of prehistorical earthquakes in the Wabash Valley seismic zone of the Central United States

Ron L. Street, Robert A. Bauer and Edward W. Woolery
Magnitude scaling of prehistorical earthquakes in the Wabash Valley seismic zone of the Central United States
Seismological Research Letters (October 2004) 75 (5): 637-641

Abstract

The moment magnitude determination for prehistorical earthquakes in the Wabash Valley seismic zone traditionally has relied on modified magnitude-bound liquefaction curves. The calibration of the moment magnitude and maximum distance to surface evidence of liquefaction curve for the central United States depended, in part, on the scaling of the 31 October 1895 earthquake as an M 6.8 event. Returning the M of the 1895 earthquake to a previously accepted value range of M 5.9 to M 6.2, and permitting the distance between the epicenter and the resulting liquefaction sites to vary, lowers the M of the prehistorical earthquakes by at least 0.6 units.


ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: 75
Serial Issue: 5
Title: Magnitude scaling of prehistorical earthquakes in the Wabash Valley seismic zone of the Central United States
Affiliation: Kentucky Geological Survey, Lexington, KY, United States
Pages: 637-641
Published: 200410
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
References: 18
Accession Number: 2005-024974
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch map
N37°00'00" - N42°30'00", W91°30'00" - W87°30'00"
N36°00'00" - N40°34'60", W95°45'00" - W89°04'60"
Secondary Affiliation: Illinois State Geological Survey, USA, United StatesUniversity of Kentucky, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200510
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