Zeyu Zhao, Peking University, School of Earth and Space Sciences, Beijing, China, Yang Jidong, China University of Petroleum (East China), Geophysics, Qingdao, China, Hejun Zhu, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China, Shuoshuo Han, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, Junlin Hua, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, Mrinal K Sen, Univ Texas Inst Geophysics, Austin, United States, Adrien F Arnulf, Scripps Institution of Oceanography, La Jolla, United States and Chang Gong, University of Science and Technology of China, Laboratory of Seismology and Physics of Earth’s Interior, School of Earth and Space Sciences, HeFei, China