More Information on 3D Geologic and Seismic Velocity Model of the San Francisco Bay Region

The 3D Geologic Map of the San Francisco Bay Region has been a joint effort of the USGS Earthquake Hazards Team and the USGS Western Earth Surface Processes Team. For additional information on 3D Geologic Maps see Three-Dimensional Geologic Maps and Visualization.

Compressional and Shear Wave Velocity Versus Depth in the San Francisco Bay Area, California: Rules for USGS Bay Area Velocity Model 05.0.0 (USGS Open-File Report 2005-1317 by Thomas M. Brocher)

SF06 Simulation Project offers more detailed information about the latest versions of the 3D Geologic Map and Seismic Velocity Model, including download and installation instructions for the Velocity Model.

Three-dimensional geologic map of the Hayward fault, northern California: Correlation of rock units with variations in seismicity, creep rate, and fault dip (15 MB pdf file) is a recent paper on the Hayward Fault Model by Russell Graymer and others.

Three-dimensional model based on geophysics of the San Andreas Fault Observatory at Depth (SAFOD), near Parkfield, Calif. is another 3D Geologic Map under construction for the region around the San Andreas Fault near Parkfield.