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.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| ArcGIS GeoService | ArcGIS GeoServices REST API | Open resource | |
| CSV | CSV | Open resource | |
| GeoJSON | GeoJSON | Open resource | |
| KML | KML | Open resource | |
| Shapefile | ZIP | Open resource | |
| ArcGIS Hub Dataset | HTML | Open resource | |
| ArcGIS Hub Dataset | HTML | Open resource |
Tags
- california
- california-department-of-conservation
- california-geological-survey
- california-geology
- california-natural-resources-agency
- caopendata
- cgs
- cnra
- doc
- earthquake
- environment
- geologic-hazards
- geology
- geoscientificinformation
- ground-motion
- hazard
- health
- planningcadastre
- seismic
- seismology
- society
- structure
- transportation
- utilitiescommunication
- velocity