| 利用数字化速度波形和仿真位移波形资料求解震源机制解的比较 |
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| 引用本文： | 付虹,王绍晋,龙晓帆,邬成栋,赵小艳.利用数字化速度波形和仿真位移波形资料求解震源机制解的比较[J].地震研究,2009,32(1). |
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| 作者姓名： | 付虹 王绍晋 龙晓帆 邬成栋 赵小艳 |
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| 作者单位： | 云南省地震局,昆明,650224 |
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| 摘 要： | 对2007年1～7月云南发生的19次ML3～4.6地震的实例分析表明,数字地震仪的速度记录波形与仿真位移波形的形态相似,振幅分布比较一致,最大振幅比值(ASV/AP)也基本相等;由数字地震仪速度记录振幅资料和仿真位移振幅资料测定的震源机制解具有显著的一致性.在采用Pg、Sg波最大振幅比测定震源机制解时,直接量取数字地震仪速度记录相应波形的最大振幅值,获取相应振幅比数据,这个方法是可行的.
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| 关 键 词： | 数字地震仪 速度波形 仿真位移波形 振幅比 震源机制 |
Comparing Focal Mechanisms Calculated by Using Digital Velocity Wave and Simulation Displacement Wave |
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| FU Hong,WANG Shao-jin,LONG Xiao-fan,WU Cheng-dong,ZHAO Xiao-yan.Comparing Focal Mechanisms Calculated by Using Digital Velocity Wave and Simulation Displacement Wave[J].Journal of Seismological Research,2009,32(1). |
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| Authors: | FU Hong WANG Shao-jin LONG Xiao-fan WU Cheng-dong ZHAO Xiao-yan |
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| Institution: | Earthquake Administration of Yunnan Province;Kunming 650224;Yunnan;China |
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| Abstract: | We analyze 19 earthquakes with ML3-4 in Yunnan recorded by digital velocity seismographs,and find that the shapes of velocity waves are similar to those of simulation displacement waves,that their amplitudes distribute accordantly,and the maximal amplitude ratios(ASV/AP)are also basically equal.So the focal mechanisms calculated by using the amplitude of velocity wave and the amplitude of simulation displacement wave are markedly accordant.When using the maximal amplitude ratio of Pg and Sg to calculate foc... |
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| Keywords: | digital seismograph velocity waveform simulation displacement waveform amplitude ratio focal mechanism |
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