USGS Open-File Report 99-146: Data Report for Seismic Refraction Surveys Conducted from 1980 to 1982 in the Livermore Valley and the Santa Cruz Mountains, California

Data Report for Seismic Refraction Surveys Conducted from 1980 to 1982 in the Livermore Valley and the Santa Cruz Mountains, California

By Angela J. Williams, Thomas M. Brocher, Walter D. Mooney, and Annette Boken

Abstract

We provide documentation for two seismic refraction profiles acquired by the U.S. Geological Survey in the San Francisco Bay area between 1980 and 1982 in Livermore Valley and the Santa Cruz Mountains. We also include the waveforms and travel times from five aftershocks of the April 1980 Livermore earthquake that were recorded on temporary seismic stations and that have not been published. Although seismic refraction profiles from the 1980 Livermore study have been published, none of the other data for this experiment, including shot times and locations, receiver locations, data quality, and travel times, have been reported. Similarly, such data from the 1981 to 1982 seismic refraction survey in the Santa Cruz Mountains included here have not been published. The first-arrival travel times from these profiles are reported in the hope that they can be used for three-dimensional velocity models in the San Francisco Bay area, particularly for the Livermore Valley and Santa Cruz Mountains.

First posted May 8, 2002

Report PDF (96 kB)

For additional information, contact:
Earthquake Science Center, Menlo Park
U.S. Geological Survey
345 Middlefield Road, MS 977
Menlo Park, CA 94025-3591
http://earthquake.usgs.gov/contactus/menloloc.php

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Suggested citation:

Williams, A. J., Brocher, T. M., Mooney, W. D., Boken, Annette, 1999, Data Report for Seismic Refraction Surveys Conducted from 1980 to 1982 in the Livermore Valley and the Santa Cruz Mountains, California: U. S. Geological Survey Open-File Report 99-146, 78 pp., https://pubs.usgs.gov/of/1999/0146/.

Contents

Abstract

Introduction

Methodology

Seismic Refraction and Aftershock Investigations in the Livermore Valley

Seismic Refraction Investigations in the Santa Cruz Mountains

Data Availability

Summary

Acknowledgements