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Service Description: Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking in Indiana, 2011 (1:500,000) - Shows the distribution and classification of National Earthquake Hazards Reduction Program (NEHRP) soil types. This shapefile represents the first attempt to assign reasonable NEHRP soil classifications to the geologic materials throughout Indiana, and provides a digital coverage of the predicted response of geologic materials in Indiana to ground shaking induced by earthquakes. It is intended only for regional planning purposes and is not a substitute for on-site shear-wave measurements and geotechnical data. Continued field work is anticipated, the results of which will enhance the accuracy and value of the map. The NEHRP soil classifications are based on geologic and engineering response to earthquake-induced ground shaking. NEHRP links the physical properties of soils, such as shear strength and effect on shear-wave velocity propagation, to ensure a uniform classification for nonlithified materials in the context of their performance when subjected to seismically induced ground shaking. Ranked A through F, the correct NEHRP soil class is best determined from the average shear-wave velocity of the soil column.

Map Name: Layers

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Layers:

• Seismic Shaking Materials Response (0)

Description:

Copyright Text: National Earthquake Hazard Reductions Program (NEHRP), Federal Emergency Management Agency (FEMA), Indiana Department of Homeland Security (IDHS)

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Document Info:

Title: Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking in Indiana (2011)
Author: Indiana Geological Survey
Comments: Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking in Indiana, 2011 (1:500,000) - Shows the distribution and classification of National Earthquake Hazards Reduction Program (NEHRP) soil types. This shapefile represents the first attempt to assign reasonable NEHRP soil classifications to the geologic materials throughout Indiana, and provides a digital coverage of the predicted response of geologic materials in Indiana to ground shaking induced by earthquakes. It is intended only for regional planning purposes and is not a substitute for on-site shear-wave measurements and geotechnical data. Continued field work is anticipated, the results of which will enhance the accuracy and value of the map. The NEHRP soil classifications are based on geologic and engineering response to earthquake-induced ground shaking. NEHRP links the physical properties of soils, such as shear strength and effect on shear-wave velocity propagation, to ensure a uniform classification for nonlithified materials in the context of their performance when subjected to seismically induced ground shaking. Ranked A through F, the correct NEHRP soil class is best determined from the average shear-wave velocity of the soil column.
Subject: Predicted Responses of Geologic Materials to Seismically Induced Ground Shaking in Indiana, 2011 - Shows distrib. and classification of NEHRP soil types
Category:
Keywords: IndianaMap,IGS,Indiana,geoscienticInformation,geology,surficial geology,quaternary,stratigraphy,earthquake,ground shaking,seismic,soil classification,shear-wave velocity,National Earthquake Hazard Reductions Program (NEHRP)
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