1. Laboratory of Seismology and Physics of Earth's Interior and School of Earth and Space Sciences; University of Science and Technology of China; Hefei China
2. Mengcheng National Geophysical Observatory; University of Science and Technology of China; Mengcheng China
3. Department of Earth, Atmospheric, and Planetary Sciences; Massachusetts Institute of Technology; Cambridge Massachusetts USA
4. Institute of Geophysics; China Earthquake Administration; Beijing China