NEHRP Clearinghouse
- Title
- Borehole P- and S-Wave Velocity at Thirteen Stations in Southern California.
- File
- PB2006105462.pdf
- Author(s)
- Gibbs, J. F.; Boore, D. M.; Tinsley, J. C.; Mueller, C. S.
- Source
- January 2001, 126 p.
- Identifying Number(s)
- USGS/OFR-01-506
- Abstract
- The U.S. Geological Survey (USGS), as part of a program to acquire seismic velocity data at locations of strong-ground motion in earthquakes, has investigated thirteen additional sites in the Southern California region. Of the thirteen sites, twelve are in the vicinity of Whittier, California and one is located in San Bernardino, California. Several deployments of temporary seismographs were made after the Whittier Narrows, California earthquake of 1 October 1987. A deployment, between 2 October and 9 November 1987, was the motivation for selection of six of the drill sites. Temporary portable seismographs at Hoover School (HOO), Lincoln School (LIN), Corps of Engineers Station (NAR), Olive Junior High School (OLV), Santa Anita Golf Course (SAG) and Southwestern Academy (SWA), recorded significant aftershock data. These portable sites with the exception of Santa Anita Golf Course were co-sited with strong-motion recorders.
- Keywords
- Poisson's Ratios; Waveforms; California; P waves; Boreholes; Seismic velocity data; Velocity profiles; S waves; Appendices; Wave travel time; Velocity; Seismographs