地震地磁观测与研究Issue(3)：53-57,5.DOI:10.3969/j.issn.1003-3246.2015.03.010
2008年、2009年大柴旦两次6级地震序列地震视应力特征
Apparent stress features of two strong earthquake sequences in Qinghai Da Qaidam
摘要
Abstract
The apparent stress of 109 ML ≥ 3.0 in two MS 6 earthquake sequences occurred in 2008 and 2009 in Da Qaidam calculation were calculated,the two main earthquake apparent stresses are 5.1 MPa and 3.4 MPa respectively,the average apparent stress is 0.48 MPa. However,the apparent stress of 2008 sequence is less than the 2009 sequence in general. According to the focal parameters given by USGS and CMT,it is easily found that the two epicenters were quite near, but the differences of in the focal depths are great,the depths of 2008 earthquake is about 25 km, and the latter is just about 12 km. Difference of the focal depth and causative structure may cause the apparent stress difference of the two earthquake seismic sequences.关键词
大柴旦/地震序列/地震视应力Key words
apparent stress/Da Qaidam earthquake/earthquake sequence引用本文复制引用
李国佑,姚家骏..2008年、2009年大柴旦两次6级地震序列地震视应力特征[J].地震地磁观测与研究,2015,(3):53-57,5.基金项目
2015年度震情跟踪定向工作任务 （）
