1. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
2. Professor, Dept. of Civil and Environmental Engineering, Univ. of California, Davis, CA 95616.
3. Seismologist, Pacific Gas and Electric, San Francisco, CA 94177.
4. Senior Engineer, California Dept. of Water Resources, 1416 9th St., Sacramento, CA 95814.