1. Laboratory of Seismology and Physics of Earth's Interior, School of Earth and Space Sciences University of Science and Technology of China Hefei China
2. Department of Earth Sciences University of Southern California Los Angeles California USA
3. Now at Geophysical Institute and Department of Geology and Geophysics University of Alaska Fairbanks Fairbanks Alaska USA
4. Now at Department of Meteorology and Geophysics University of Vienna Vienna Austria
5. Department of Geoscience University of Wisconsin‐Madison Madison Wisconsin USA
6. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology Cambridge Massachusetts USA