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Comparison of Shear-velocity Profiles of Unconsolidated Sediments Near the Coyote Borehole (CCOC) Measured with Fourteen Invasive and Non-invasive Methods Editorial

¹ Centre for Environmental and Geotechnical Applications of Surface Waves (CEGAS) School of Geosciences, Monash University, Melbourne, VIC 3800 Australia, Email: michael.asten@sci.monash.edu.au
² Earthquake Hazards, US Geological Survey, Menlo Park, CA 94025 U.S.A., Email: boore@usgs.gov

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	Overview

 
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 summarizes results, relative depths of penetration and . . . [Full Text of this Article]