TY - RPRT TI - Using twelve years of USGS refraction lines to calibrate the Brocher and others (1997) 3D velocity model of the Bay Area AU - John Boatwright AU - Luke Blair AU - Rufus Catchings AU - Mark Goldman AU - Fabio Perosi AU - Clare Steedman PY - 2004 DO - 10.3133/ofr20041282 UR - https://pubs.usgs.gov/publication/ofr20041282 ID - ofr20041282 ER -