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利用单台数字地震记录反演天祝—古浪5.4级地震矩张量
引用本文:荣代潞,李亚荣.利用单台数字地震记录反演天祝—古浪5.4级地震矩张量[J].高原地震,2000,12(2):32-36.
作者姓名:荣代潞  李亚荣
作者单位:中国地震局兰州地震研究所,甘肃兰州
基金项目:地震科学联合基金重点项目!( 95- 0 7- 436 )资助
摘    要:利用单台3分向数字化记录反演了1996年6月1日甘肃天祝-古浪5.4级地震的矩张量,并对所得结果与用P波被动符合的结果进行了比较。结果表明,二具有很好的一致性。结合谝地震的震源机制和震源区的断层的构造情况,认为该地震是在NE-SW的压应力作用下,近EW向的源原西断层天祝-古浪段左旋破裂错动的结果。由于我们得出的结果只是利用了记录波形的最初几个波形,因此它基本反映了该地震的初始破裂错动情况。

关 键 词:数字地震记录  矩张量反演  天祝-古浪地震

INVERTION OF THE SEISMIC MOMENT TENSOR OF TIANZHU-GULANG EARTHQUAKE(M5.4) USING THE THREE COMPONENTS DIGITAL RECORD OF SINGLE STATION
RONG Dai Lu,LI Ya rong,JIN Ming,JIANG Xu yuan.INVERTION OF THE SEISMIC MOMENT TENSOR OF TIANZHU-GULANG EARTHQUAKE(M5.4) USING THE THREE COMPONENTS DIGITAL RECORD OF SINGLE STATION[J].Plateau Earthquake Research,2000,12(2):32-36.
Authors:RONG Dai Lu  LI Ya rong  JIN Ming  JIANG Xu yuan
Abstract:The seismic moment tensor of Tianzhu Gulang earthquake(M5.4,June 1,1996)has been inverted using the 3 components digital record of single station and compared with the result obtained from the initial motion of P wave.The two results show identically.Combining with the source mechanism of the earthquake and the fault structure in the source area,the authors have considered that the earthquake is the result of the left lateral dislocation of the segment of the west Haiyuan fault which is in EW direction.It shows the initial rupturing and dislocating of the earthquake.
Keywords:components digital seismic record  Seismic moment tensor inversion  Tianzhu  Gulang earthquake
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