1. Center for Computational Science and Engineering; University of California; Davis California USA
2. Department of Physics; University of California; Davis California USA
3. Department of Civil and Environmental Engineering; University of California; Davis California USA
4. Department of Geology; University of California; Davis California USA
5. Earth and Space Sciences Division; Jet Propulsion Laboratory; Pasadena California USA
6. Department of Physics; Boston University; Boston Massachusetts USA
7. Temporarily at Los Alamos National Laboratory; Los Alamos New Mexico USA
8. Department of Geology and Geophysics; University of Southern California; Los Angeles California USA