A set of fourteen invasive and non-invasive geophysical methods are compared for the measurement of the shear-velocity (Vs) profile at or near a borehole at the Coyote Creek outdoor Classroom, Santa Clara Valley, California. The borehole with geophysical logs provided opportunity for a series of blind trials of methods for measurement of the Vs profile in thick, soft sediments. The various methods are important in the task of establishing shear-velocity profiles for purposes of earthquake hazard site classification in California. Results of the trials were presented at a one-day workshop at the US Geological Survey in May 2004; this paper...

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