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Surface-wave site characterization at 53 strong-motion recording stations affected by the Parkfield, California, M6.0 earthquake of 28 September 2004

Open-File Report 2010-1168

In Cooperation with Tufts University
By:
, , , and

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Abstract

We present one-dimensional shear-wave velocity (VS) profiles at 52 strong-motion sites that recorded the 28 September 2004 Magnitude 6.0 Parkfield, Calif., earthquake. We estimate the VS profiles with the Spectral Analysis of Surface-Waves (SASW) method. The SASW method is a noninvasive method that indirectly estimates the VS at depth from variations in the Rayleigh wave phase velocity at the surface. To address the uncertainty associated with these measurements, we compare the SASW profiles to surface-source downhole-receiver (SSDR) profiles at four sites. Three of the four SSDR sites are in close agreement with the adjacent SASW site, while the SASW profile is considerably slower than the SSDR profile at one site.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Surface-wave site characterization at 53 strong-motion recording stations affected by the Parkfield, California, M6.0 earthquake of 28 September 2004
Series title:
Open-File Report
Series number:
2010-1168
Edition:
-
Year Published:
2010
Language:
ENGLISH
Publisher:
U.S. Geological Survey
Contributing office(s):
Pacific Coastal and Marine Science Center
Description:
iii, 10 p.; Appendix; Data Package
Online Only (Y/N):
Y
Additional Online Files(Y/N):
Y