San Francisco Bay region 3D seismic velocity model v21.0

This three-dimensional (3D) seismic velocity model includes a detailed domain covering the greater San Francisco Bay urban region and a regional domain at a coarser resolution covering a larger region. Version 21.0 is a re-release of v08.3.0 in a new storage scheme. The model was constructed by assigning elastic properties (density, Vp, Vs, Qp, and Qs) to grids of points based on the geologic unit and depth from the ground surface. The model is stored in HDF5 files using the GeoModelGrids (https://geomodelgrids.readthedocs.io) storage scheme (see the README.md file for an overview). GeoModelGrids provides a high-level interface for accessing the model. The model can also be accessed using the HDF5 application programming interface provided with many programming languages and tools, but the user will be responsible for all coordinate transformations.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-6170217fd34ea36449a5eca1
metadata_type geospatial
modified 2021-12-08T00:00:00Z
old-spatial -126.3216, 35.0364, -118.9787, 41.4586
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 70f998aafbb8e00084ad4c9a684a011f8676d59b20274e4cfe9a830bac7582f4
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-126.3216, 35.0364], [-126.3216, 41.4586], [ -118.9787, 41.4586], [ -118.9787, 35.0364], [-126.3216, 35.0364]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • california
  • earthquake
  • earthquake-hazards
  • elastic-properties
  • epicenter
  • ghsc
  • golden
  • plate-tectonics
  • san-francisco-bay
  • seismic
  • seismic-velocity-model
  • three-dimensional-model
  • usgs
  • usgs-6170217fd34ea36449a5eca1
isopen False
license_id notspecified
license_title License not specified
maintainer Brad T Aagaard
maintainer_email baagaard@usgs.gov
metadata_created 2025-09-24T23:55:06.959632
metadata_modified 2025-09-24T23:55:06.959644
notes This three-dimensional (3D) seismic velocity model includes a detailed domain covering the greater San Francisco Bay urban region and a regional domain at a coarser resolution covering a larger region. Version 21.0 is a re-release of v08.3.0 in a new storage scheme. The model was constructed by assigning elastic properties (density, Vp, Vs, Qp, and Qs) to grids of points based on the geologic unit and depth from the ground surface. The model is stored in HDF5 files using the GeoModelGrids (https://geomodelgrids.readthedocs.io) storage scheme (see the README.md file for an overview). GeoModelGrids provides a high-level interface for accessing the model. The model can also be accessed using the HDF5 application programming interface provided with many programming languages and tools, but the user will be responsible for all coordinate transformations.
num_resources 2
num_tags 22
title San Francisco Bay region 3D seismic velocity model v21.0