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Major earthquakes recorded by speleothems in Midwestern U.S. caves

Samuel V. Panno, Craig C. Lundstrom, Keith C. Hackley, Brandon B. Curry, Bruce W. Fouke and Zaofeng Zhang
Major earthquakes recorded by speleothems in Midwestern U.S. caves
Bulletin of the Seismological Society of America (August 2009) 99 (4): 2147-2154

Abstract

Historic earthquakes generated by the New Madrid seismic zone represent some of the largest recorded in the United States, yet prehistoric events are recognized only through deformation in late-Wisconsin to Holocene-age, near surface sediments (liquefaction, monoclinal folding, and changes in river meanders). In this article, we show that speleothems in caves of southwestern Illinois and southeastern Missouri may constitute a previously unrecognized recorder of large earthquakes in the U.S. midcontinent region. The timing of the initiation and regrowth of stalagmites in southwestern Illinois and southeastern Missouri caves is consistent with the historic and prehistoric record of several known seismic events in the U.S. midcontinent region. We conclude that dating the initiation of original stalagmite growth and later postearthquake rejuvenation constitutes a new paleoseismic method that has the potential for being applied to any region around the world in the vicinity of major seismic zones where caves exist. Use of this technique could expand the geographical distribution of paleoseimic data, document prehistoric earthquakes, and help improve interpretations of paleoearthquakes.


ISSN: 0037-1106
EISSN: 1943-3573
Serial Title: Bulletin of the Seismological Society of America
Serial Volume: 99
Serial Issue: 4
Title: Major earthquakes recorded by speleothems in Midwestern U.S. caves
Affiliation: Illinois State Geological Survey, Champaign, IL, United States
Pages: 2147-2154
Published: 200908
Text Language: English
Publisher: Seismological Society of America, Berkeley, CA, United States
References: 46
Accession Number: 2009-088534
Categories: Quaternary geologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch maps
N37°00'00" - N42°30'00", W91°30'00" - W87°30'00"
N36°00'00" - N49°00'00", W104°00'00" - W80°30'00"
N36°00'00" - N40°34'60", W95°45'00" - W89°04'60"
Secondary Affiliation: University of Illinois, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200948
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