Velocity Model

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

Description

References

Brocher, Thomas M. (2005). 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. (abstract and full text)

Brocher, Thomas M. (2005). Empirical relations between elastic wavespeeds and density in the Earth's crust, Bulletin of the Seismological Society of America, 95(6), 2081-2092, doi: 10.1785/01200500771. (pdf)

Brocher, Thomas M. (2005). A reginal view of urban sedimentary basins in northern California based on oil industry compressional-wave velocity and density logs, Bulletin of the Seismological Society of America, 95(6), 2093-2114, doi: 10.1785/01200500251. (pdf)

Releases

Release 08.3.0

Release 05.1.0

Release 05.0.0

Querying the models

The velocity model is stored in an Etree database. Brad Aagaard created routines to query the database from C++, C, and Fortran 77. The query software is called cencalvm (current version is 0.6.0) and is generally updated independently of the velocity model.

Documentation

Download

Contacts for problems or questions