Relationship between regional stress field variation and earthquake activities from GPS data
Relationship between regional stress field variation and earthquake activities from GPS data作者机构:Second Crustal Deformation Monitoring Center China Seismological Bureau Xi’an China Institute of Seismology China Seismological Bureau Wuhan China
出 版 物:《Acta Seismologica Sinica(English Edition)》 (地震学报(英文版))
年 卷 期:2000年第13卷第5期
页 面:483-490页
核心收录:
学科分类:070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学]
基 金:State Natural Science Foundation of China !(49774214) the State Key Project !(96-913-07)
主 题:GPS data boundary integral method crustal stress field seismic activities
摘 要:The relationship between the earth stress field, earth surface displacement field and the gravity variation is deduced. Algorithms based on the boundary element method to compute the earth stress variation using the earth surface displacement is discussed. The stress field variation in Jiashi region, Xinjiang, China is obtained from the GPS data observed in 1997 and 1998, respectively, and the relationship among the local stress field variation, seismic activities and fault tectonic activities is discussed.