Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139-4307, United States
Department of Physics, University of Toronto, 60 St. George Street Toronto, Ontario, M5S 1A7, Canada
Universite Louis Pasteur, CNRS (UMR 7516) and Universite Louis Pasteur, Strasbourg, UMR 7516, France
Department of Geosciences, Princeton University, Princeton University, Princeton, NJ 08544, United States
Seismological Laboratory, California Institute of Technology, 252-21, Caltech, Pasadena, CA 91125, United States
NIED, National Research Institute for Earth Science and Disaster Prevention, 3-1, Tenno-dai, Tsukuba,Ibaraki, 305-0006, Japan
NIED, National Research Institute for Earth Science and Disaster Prevention, 3-1, Tenno-dai, Tsukuba,Ibaraki, 305-0006, Japan