This map was prepared for emergency planners and educators as a simplified guide to the distribution and classification of National Earthquake Hazards Reduction Program (NEHRP) soil types in Indiana. Liquefaction potential is displayed as either low, moderate, or high. County names, hydrological features, and roadways are provided as recognizable reference points. A larger version of this map, IGS MM86 scale, 1:500,000), is also available. 1" = 19 miles 11" x 17" Originally released in 2011. Updated 2012
Gray, W. E., Parke, M., and Steinmetz, J. C., 2011, Map of Indiana showing liquefaction potential of surficial materials: Indiana Geological Survey Miscellaneous Map 81, scale 1:1,193,061.
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