[1] China Seismol Bur, Ctr Crustal Movement Studies, Beijing 100029, Peoples R China
[2] China Seismol Bur, Inst Seismol, Wuhan 430071, Peoples R China
[3] China Seismol Bur, Inst Geol, Beijing 100029, Peoples R China
[4] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA
[5] Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA
[6] Univ Colorado, CIRES, Boulder, CO 80309 USA
[7] Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA
[8] China Seismol Bur, Crustal Deformat Monitoring Ctr 1, Tianjin 300180, Peoples R China
[9] Wuhan Univ, Sch Geodesy & Geomat, Wuhan 430071, Peoples R China
[10] Changan Univ, Dept Surveying Engn, Xian 710064, Peoples R China