1. State Key Laboratory of Earthquake Dynamics, Institute of Geology China Earthquake Administration Beijing China
2. The Second Monitoring and Application Center China Earthquake Administration Xi'an China
3. School of Earth and Space Exploration Arizona State University Tempe AZ USA
4. Department of Chemical and Physical Sciences University of Toronto Mississauga Mississauga Ontario Canada
5. Department of Marine, Earth, and Atmospheric Sciences North Carolina State University Raleigh NC USA