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Wagon Loads of Sand Blows in White County, Illinois

2005; Seismological Society of America; Volume: 76; Issue: 3 Linguagem: Inglês

10.1785/gssrl.76.3.373

1938-2057

S. E. Hough, Roger Bilham, Karl Mueller, W. R. Stephenson, R.A. Williams, Jack K. Odum,

Landslides and related hazards

Other| May 01, 2005 Wagon Loads of Sand Blows in White County, Illinois Susan E. Hough; Susan E. Hough U.S. Geological Survey 525 S. Wilson Avenue Pasadena, CA 91106 hough@gps.coltech.edu (S.E.H.) Search for other works by this author on: GSW Google Scholar Roger Bilham; Roger Bilham University of Colorado Boulder, CO (R.B., K.M.) Search for other works by this author on: GSW Google Scholar Karl Mueller; Karl Mueller University of Colorado Boulder, CO (R.B., K.M.) Search for other works by this author on: GSW Google Scholar William Stephenson; William Stephenson U.S. Geological Survey Golden, CO (W.S., R. W., J. 0.) Search for other works by this author on: GSW Google Scholar Robert Williams; Robert Williams U.S. Geological Survey Golden, CO (W.S., R. W., J. 0.) Search for other works by this author on: GSW Google Scholar Jack Odum Jack Odum U.S. Geological Survey Golden, CO (W.S., R. W., J. 0.) Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2005) 76 (3): 373–386. https://doi.org/10.1785/gssrl.76.3.373 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Susan E. Hough, Roger Bilham, Karl Mueller, William Stephenson, Robert Williams, Jack Odum; Wagon Loads of Sand Blows in White County, Illinois. Seismological Research Letters 2005;; 76 (3): 373–386. doi: https://doi.org/10.1785/gssrl.76.3.373 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySeismological Research Letters Search Advanced Search Abstract Several anecdotal accounts provide compelling evidence that liquefaction occurred at several sites in Illinois during the 1811-1812 New Madrid sequence, as much as 250 km north of the New Madrid seismic zone (NMSZ). At one Wabash Valley location, sand blows are still evident near Big Prairie, Illinois, a location described in a particularly detailed and precise historic account. This account includes descriptions of substantial liquefaction (sand blows) as well as a two-mile-long east-west-trending “crack” along which two feet of south-side-down displacement occurred. An offset can no longer be seen at this location, which has been extensively farmed and plowed for decades. Field reconnaissance verifies many of the details provided in the account, however. We conducted a seismic-reflection experiment at this location and observed a modest offset in the Paleozoic strata at this location. The offset is opposite to that described in the historic account, consistent with the hypothesis that large midcontinent earthquakes occur on faults reactivated in a Holocene stress regime different from the one in which they were formed. Only two explanations can account for these observations: Either large NMSZ events triggered substantial liquefaction at distances greater than hitherto realized, or at least one large “New Madrid” event occurred significantly north of the NMSZ. We explore these possibilities and conclude that, while neither one can be ruled out, several disparate lines of evidence suggest that the 23 January 1812 “New Madrid mainshock” occurred in White County, Illinois, near the location of the mb 5.5 1968 southern Illinois earthquake and recent microearthquake activity. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.