John B Rundle, University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, Donald L Turcotte, Univ California, Earth and Planetary Sciences, Davis, CA, United States, James P Crutchfield, University of California Davis, Physics, Davis, CA, United States, Andrea Donnellan, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States and Kazuyoshi Nanjo, NIED, Tokyo, Japan