1. Preliminary maps showing location of reported damage and intensity of shaking in part of northern Santa Clara and southern San Mateo counties, California, from October 17, 1989 M 7.1 Loma Prieta earthquake [microform] Yale Public content 1995. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; Books and Open-File Reports Section, distributor. English. Public. California, Santa Clara County, and San Mateo County.