USGS Bay Area Velocity Model Release 05.0.0

Tom Brocher (USGS Menlo Park), Cliff Thurber (Univ. of Wisconsin)

Note

This release has been superceded by release 05.1.0.

Description

This is the initial release of the USGS Bay Area Velocity Model. It fills the volume covered by the detailed 3-D geologic model (see the description of the fault block model for geographic coverage). The resolution of the model is variable with the following specifications:

The gzip compressed database file is 1.4 GB, uncompressed it is ~7.5 GB.

The resolution of the models is variable with the following specifications:

Elevation1 Horiz. Resolution Vertical Resolution
z > -400m 100m 25m
-400m > z > -3200m 200m 50m
-3200m > z > -31000m 800m 200m
1Elevation is given with respect to mean sea level, so -400m corresponds to 400m below mean sea level.