| 中国大陆地区的地震检测能力 |
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| 引用本文： | 魏富胜,许忠淮,王淑辉,蒋长胜,郭祥云.中国大陆地区的地震检测能力[J].地震地磁观测与研究,2009,30(5):26-33. |
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| 作者姓名： | 魏富胜 许忠淮 王淑辉 蒋长胜 郭祥云 |
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| 作者单位： | 1. 中国北京,100081,中国地震局地球物理研究所
2. 中国沈阳,110034,辽宁省地震局 |
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| 基金项目： | 地震行业科研专项基金课题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。利用地震频度—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以定量表征地震检测能力。以1970-2005年36年来的地震观测目录为基础数据，客观统计了中国大陆地区地震台网的检测水平。
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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 capability of earthquakes in China mainland |
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| Wei Fusheng,Xu Zhonghuai,Wang Shuhui,Jiang Changsheng,Guo Xiangyun.Detection capability of earthquakes in China mainland[J].Seismological and Geomagnetic Observation and Research,2009,30(5):26-33. |
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| Authors: | Wei Fusheng Xu Zhonghuai Wang Shuhui Jiang Changsheng Guo Xiangyun |
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| Institution: | Wei Fusheng, Xu Zhonghuai, Wang Shuhui, Jiang Changsheng and Guo Xiangyun(1 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China 2 Earthquake Administration of Liaoning Province, Shenyang 110034, China) |
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| Abstract: | The lowest magnitude of completely locatable earthquakes characterizes the detection capability for a seismic recording system in a region. Based on the frequency-magnitude relation of earthquakes,a statistical analysis on the detection rate of regional earthquakes has made in this paper. A parameter mr, the lower magnitude limit for the earthquakes with 70.7% locatable ratio, is defined to describe the detection capability. On the basis of the earthquake catalogue for 36 years, from 1970 to 2005, the detection level of the seismograph networks in China mainland is objectively evaluated. |
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| Keywords: | seismic recording system detection capability frequency-magnitude relation China mainland |
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