TY - RPRT TI - Geologic hazards in the Summit Ridge area of the Santa Cruz Mountains, Santa Cruz County, California, evaluated in response to the October 17, 1989, Loma Prieta earthquake: Report of the Technical Advisory Group AU - D. K. Keefer AU - A. A. Rakstins AU - G. B. Griggs AU - E. L. Harp AU - Paia Levine AU - C. C. McAneny AU - T. E. Spittler AU - G. E. Weber AU - J. M. Andersen AU - M. E. Hynes AU - J. M. Nolan AU - H. M. Taylor PY - 1991 DO - 10.3133/ofr91618 UR - https://pubs.usgs.gov/publication/ofr91618 ID - ofr91618 ER -