| 内蒙古呼和浩特-包头地区地震目录的完整性分析 |
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| 引用本文： | 韩晓明,曹孟娜,张帆.内蒙古呼和浩特-包头地区地震目录的完整性分析[J].西北地震学报,2012,34(1):93-98. |
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| 作者姓名： | 韩晓明 曹孟娜 张帆 |
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| 作者单位： | 内蒙古自治区地震局,内蒙古呼和浩特,010010 |
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| 基金项目： | 2012年地震科技星火计划项目，2012年内蒙古自治区应用技术研究与开发项目 |
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| 摘 要： | 以内蒙古中部的呼和浩特-包头地区(40°～42°N,108°～114°E)作为研究区域,收集整理2001年1月1日至2010年4月30日ML≥1.0地震作为研究对象,按地震样本数目滑动扫描并计算最小完整性震级Mc,绘制Mc的时序变化曲线.分析认为Mc在时间上的变化主要反映台网监测能力和地震活动规律,但台站布局、地震信噪比和人为因素也会引起Mc的短期或不连续性的变化.同时在Rydelek等提出的2个假设条件下,对呼包地区的地震目录完整性进行了RS检验,其结果与上述扫描计算结果一致,也与根据台网监测能力所得到的震级范围吻合,证明本文的计算结果能够比较真实的反映2001年以来呼包地区地震目录在各时段内的完整性.
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| 关 键 词： | 内蒙古呼和浩特-包头地区 地震目录 最小完整性震级Mc RS检验 |
Integrality Analysis of the Earthquake Catalog for Hohhot-Baotou Area in Inner Mongolia |
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| HAN Xiao-ming,CAO Meng-n,ZHANG Fan.Integrality Analysis of the Earthquake Catalog for Hohhot-Baotou Area in Inner Mongolia[J].Northwestern Seismological Journal,2012,34(1):93-98. |
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| Authors: | HAN Xiao-ming CAO Meng-n ZHANG Fan |
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| Institution: | (Earthquake Administration of Inner Mongolia Autonomous Region,Hohhot 010010,China) |
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| Abstract: | Taking the Hohhot-Baotou region(40° ~ 42°N,108°~ 114°E) in Central Inner Mongolia as study area,collecting the earthquake events with ML≥1.0 from January 1,2001 to April 30,2010,the number of seismic samples is sliding scaned and the minimum integrality magnitude Mc is calculated.The Mc change curve with time is drawn also.It is considered that Mc change along with the time is mainly reflected by monitoring capabilities of earthquake station network and seismic activities,but the station layout、the earthquake noise ratio and human factors can also cause short-term or discontinuous Mc change.Meanwhile in two assumptions made by Rydelek,the completeness of earthquake catalog in Hohhot-Baotou area is tested by RS method.The tested result is consistent with our Mc value,and also with the monitoring magnitude range obtained from the monitoring ability of local network.So the study result can truly reflect the integrality of earthquake catalog in Hohhot-Baotou area since 2001. |
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| Keywords: | Hohhot-Baotou area of Inner Mongolia Earthquake catalog The minimum integrality magnitude Mc Rydelek-Sacks test |
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