1. Waterworks Engineer, Los Angeles Dept. of Water and Power, Geotechnical Engineering Group, 111 N. Hope St., Room 1368, Los Angeles, CA 90012 (corresponding author).
2. Professor-in-Residence, Dept. of Earth and Planetary Sciences and Institute of Geophysics and Planetary Physics, Univ. of California, Los Angeles, CA 90095-1567; and International Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences, 84/32 Profsouznaya, Moscow 117997, Russia.
3. International Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences, 84/32 Profsouznaya, Moscow 117997, Russia; and Abdus Salam International Centre for Theoretical Physics, Trieste, Italy.
4. Senior Researcher, International Institute of Earthquake Prediction Theory and Mathematical Geophysics, Russian Academy of Sciences, 84/32 Profsouznaya, Moscow 117997, Russia; and Institut de Physique du Globe de Paris, 4 Place Jussieu, 75252 Paris Cedex 05, France.
5. Civil Engineering Associate, Los Angeles Dept. of Water and Power, Geotechnical Engineering Group, 111 N. Hope St., Room 1368, Los Angeles, CA 90012.