U.S. Geological Survey, 345 Middlefield Rd. MS977, Menlo Park, CA 94025 United States ; now at Geomatrix Consultants, Inc., 2101 Webster Street, 12th Floor, Oakland, CA 94612-3066 United States
U.S. Geological Survey, 345 Middlefield Rd. MS977, Menlo Park, CA 94025 United States
Active Fault Research Center,AIST, Site 7, 1-1-1 Higashi, Tsukuba, Ibaraki, Tsukuba, 205-8567 Japan