1. Department of Land Surveying and Geo‐informaticsThe Hong Kong Polytechnic University Hong Kong China
2. School of Geodesy and GeomaticsWuhan University Wuhan China
3. Institute of GeodesyUniversity of Stuttgart Stuttgart Germany
4. Berkeley Seismological Laboratory and Department of Earth and Planetary ScienceUniversity of California Berkeley California USA
5. Earth System Science Program, Faculty of ScienceThe Chinese University of Hong Kong Hong Kong China