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CGS/MS48_Vs30 (MapServer)

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Service Description: This dataset represents simplified geologic units that have been correlated to the time-averaged seismic shear-wave velocity in the upper 30 meters of the earth s surface (Vs30). The geologic units were compiled from published maps that range in scale from 1:250,000 to 1:24,000, along with a system for subdividing younger alluvium based on surface slope. More information can be obtained from the associated article published in the Bulletin of the Seismological Society of America: Wills, C.J., Gutierrez, C.I., Perez, F.G., and Branum, D.B., 2015, A next-generation Vs30 map for California based on geology and topography: Bulletin of the Seismological Society of America.

Map Name: Layers


All Layers and Tables

Layers: Description:

Service Item Id: a092865bb0b646d084ce9b0abbbe0931

Copyright Text: C.J. Wills, C.I. Gutierrez, F.G. Perez, and D.B. Branum, California Geological Survey, California Department of Conservation.

Spatial Reference: 102100  (3857)

Single Fused Map Cache: true

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


Document Info: Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

Supports Query Data Elements:

Min Scale: 5.91657527591555E8

Max Scale: 18055.954822

Min LOD: 0

Max LOD: 15

Supports Datum Transformation: true

Child Resources:   Info

Supported Operations:   Export Map   Identify   QueryDomains   QueryLegends   Find   Return Updates