【摘要】 通过对形变与GPS观测资料的处理,分析汶川地震前后福建地区形变及应力场的演化过程。结果表明,汶川地震前,以晋江-永安断裂带为界,北部为应力压缩区,南部为压力拉张区。汶川地震后,长乐-诏安断裂带及以东区域为应力压缩区,除此以外的西部区域为应力拉张区。更多还原

【Abstract】 On basis of deformation and GPS data,the evolution process of deformation and stress field pre-and post Wenchuan M8.0 earthquake in Fujian province area is analyzed.The results show that before Wenchuan M8.0 earthquake,bounded by Jinjiang-Yong’an faults,stress field of the north of Fujian province is compress,and of the south is extension;After Wenchuan M8.0 earthquake,to the east of Changle-Zhao’an faults stress field,the stress field is compress,and to the west is extension.更多还原