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Geology/Seismic_Shaking_Materials_Response (MapServer)

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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


All Layers and Tables

Layers: Description:

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

Spatial Reference: 26916  (26916)

Single Fused Map Cache: true

Tile Info: Initial Extent: Full Extent: Units: esriMeters


Document Info: Supports Dynamic Layers: false

MaxRecordCount: 100

MaxImageHeight: 2048

MaxImageWidth: 2048

Supported Query Formats: JSON, geoJSON

Supports Query Data Elements:

Min Scale: 2500000

Max Scale: 1000

Supports Datum Transformation: true

Child Resources:   Info

Supported Operations:   Export Map   Identify   QueryDomains   QueryLegends   Find   Return Updates   Generate KML