Affiliation: | Department of Geophysics, Stanford University, Stanford, CA 94305-2215, U.S.A;Earthquake Science Center, United States Geological Survey, Menlo Park, CA 94025, U.S.A,Department of Geophysics, Stanford University, Stanford, CA 94305-2215, U.S.A,Earthquake Science Center, United States Geological Survey, Menlo Park, CA 94025, U.S.A and Saudi Geological Survey, Jeddah 21514, Saudi Arabia |