| 利用FOCMEC方法计算震源机制解的影响因素分析——以九江—瑞昌Ms5.7地震为例 |
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| 引用本文： | 倪红玉,刘泽民,沈小七,郑先进,李玲利.利用FOCMEC方法计算震源机制解的影响因素分析——以九江—瑞昌Ms5.7地震为例[J].华北地震科学,2011,29(3):1-7. |
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| 作者姓名： | 倪红玉 刘泽民 沈小七 郑先进 李玲利 |
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| 作者单位： | 安徽省地震局,安徽合肥,230031 |
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| 基金项目： | 中国地震局2011年度震情跟踪重点综合性合同制定向工作任务(2011013301) |
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| 摘 要： | 应用Snoke最新发展的利用P波、SV波和SH波的初动和振幅比联合计算震源机制解的方法(FOCMEC),以2005年11月26日九江—瑞昌MS5.7地震为例,分析速度结构模型、震源定位误差、初动与振幅比资料和台站分布等对计算震源机制解的影响.结果表明,FOCMEC方法应采用研究区内的精细速度结构模型,各层速度误差在5％...
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| 关 键 词： | 震源机制解 初动 振幅比 速度结构 九江—瑞昌MS5.7地震 |
Analysis of Influencing Factors on FOCMEC Method——Taking JiuJiang-RuiChang Ms5.7 Earthquake as an Example |
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| NI Hong-yu,LIU Ze-min,SHEN Xiao-qi,ZHENG Xian-jin,LI ling-li.Analysis of Influencing Factors on FOCMEC Method——Taking JiuJiang-RuiChang Ms5.7 Earthquake as an Example[J].North China Earthquake Sciences,2011,29(3):1-7. |
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| Authors: | NI Hong-yu LIU Ze-min SHEN Xiao-qi ZHENG Xian-jin LI ling-li |
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| Institution: | NI Hong-yu,LIU Ze-min,SHEN Xiao-qi,ZHENG Xian-jin,LI ling-li(Earthquake Administration of Anhui Province,Hefei 230031,China) |
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| Abstract: | Based on polarities of P,SV and SH waves combining with their amplitude ratios,using the Focal Mechanism Determining Method of FOCMEC,taking JiuJiang-RuiChang MS5.7 earthquake on Nov 26 2005 as an example,the influencing factors such as velocity structure model,focal positioning error,data of the first motion and amplitude ratios,distribution of stations and so on are analyzed.The result shows that fine velocity structure model in the study area is necessary in this method;the velocity error of each layer w... |
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| Keywords: | focal mechanism solution first motion amplitude ratio velocity structure model JiuJiang-RuiChang MS5 7 earthquake |
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