Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Paleoliquefaction surveys between 1990 and 1994 in Illinois

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Description Over several summer field seasons from 1990 through 1994, several workers searched ditches and river banks for evidence of liquefaction. They found numerous banks with shaking-induced, pre-historic, earthquake induced sandblows and the dikes that fed them
Originators Rhea, Susan
Publication U.S. Geological Survey Open-File Report 97-0681

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areas searched for liquefaction evidence

Label Definition
INSIDE area inside BUFFERed river shoreline where searched for liquefaction