Skip to main content
U.S. flag

An official website of the United States government

Comparison of P- and S-wave velocity profiles obtained from surface seismic refraction/reflection and downhole data

January 1, 2003

High-resolution seismic-reflection/refraction data were acquired on the ground surface at six locations to compare with near-surface seismic-velocity downhole measurements. Measurement sites were in Seattle, WA, the San Francisco Bay Area, CA, and the San Fernando Valley, CA. We quantitatively compared the data in terms of the average shear-wave velocity to 30-m depth (Vs30), and by the ratio of the relative site amplification produced by the velocity profiles of each data type over a specified set of quarter-wavelength frequencies. In terms of Vs30, similar values were determined from the two methods. There is

Publication Year 2003
Title Comparison of P- and S-wave velocity profiles obtained from surface seismic refraction/reflection and downhole data
DOI 10.1016/S0040-1951(03)00151-3
Authors R. A. Williams, W. J. Stephenson, J. K. Odum
Publication Type Article
Publication Subtype Journal Article
Series Title Tectonophysics
Index ID 70025398
Record Source USGS Publications Warehouse
Was this page helpful?