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Layer: Shear-wave Velocity in Upper 30m of Surficial Geology (Vs30) (ID: 0)

Name: Shear-wave Velocity in Upper 30m of Surficial Geology (Vs30)

Display Field: Geologic_U

Type: Feature Layer

Geometry Type: esriGeometryPolygon

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.

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.

Default Visibility: true

MaxRecordCount: 1000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Drawing Info: Advanced Query Capabilities:
HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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