| 中国大陆地震检测能力的新进展 |
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| 引用本文： | 魏富胜,许忠淮,郭祥云.中国大陆地震检测能力的新进展[J].防灾科技学院学报,2010,12(4). |
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| 作者姓名： | 魏富胜 许忠淮 郭祥云 |
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| 作者单位： | 中国地震局地球物理研究所,北京,100081 |
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| 基金项目： | 地震行业专项基金(200708006) |
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| 摘 要： | 被普遍记录的最小震级是表征地震检测能力的重要标志。基于地震频度-震级关系统计了地震观测系统的检测率。引进了相应于70.7%检测率的系统震级下限参量Mr以定量表征地震实际观测能力。以1970-2009年40年来中国大陆地区的地震观测目录为基础数据,分三个时间段客观统计了地震台网的观测水平,展示了中国大陆地震检测能力的地理分布。
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| 关 键 词： | 地震观测 检测能力 频度震级关系 中国大陆 |
Detection Ability of Earthquakes in China Mainland |
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| Wei Fusheng,Xu Zhonghuai,Guo Xiangyun.Detection Ability of Earthquakes in China Mainland[J].Journal of Institute of Disaster-prevention Science and Technology,2010,12(4). |
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| Authors: | Wei Fusheng Xu Zhonghuai Guo Xiangyun |
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| Institution: | Wei Fusheng,Xu Zhonghuai,Guo Xiangyun(Institute of Geophysics,China Earthquake Administration,Beijing 100081) |
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| Abstract: | The lowest magnitude of completely located earthquakes characterizes the detection ability for a region with a seismic recording system.Based on the frequency-magnitude relation of earthquakes,this paper has made a statistical analysis on the detection rate of regional earthquakes.A parameter Mr,the lower magnitude limit for the earthquakes,70.7% of which can be located,is defined to describe the realistic detection ability.On the basis of the earthquake catalogue for recent 40 years from 1970 to 2009,the d... |
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| Keywords: | seismic recording system detection ability frequency-magnitude relation China mainland |
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