| 分区量规函数在河北地震台网近震震级测定的适用性 |
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| 引用本文： | 贾炯,赵英萍,王宁,常亮,李冬圣,蔡玲玲.分区量规函数在河北地震台网近震震级测定的适用性[J].地震地磁观测与研究,2018,39(3):10-15. |
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| 作者姓名： | 贾炯 赵英萍 王宁 常亮 李冬圣 蔡玲玲 |
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| 作者单位： | 中国石家庄 050021 河北省地震局 |
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| 基金项目： | 测震台网青年骨干培养专项（项目编号：20160503） |
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| 摘 要： | 选取河北地震台网2008—2016年记录的1 714个ML≥0.1地震，采用分区量规函数（新量规函数）重新计算并对比分析ML震级。实际结果表明，采用新旧量规函数计算得到的近震震级一致性较好，ML震级偏差在±0.1的地震共1 556个，约91.8%，且抽样地震近震震级均值和标准方差更小。因此，使用分区量规函数，河北地震台网近震震级测定精度和适用性更好。
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| 关 键 词： | 量规函数 震中距 震级偏差 |
Analysis of partition gauge function for local magnitude in Hebei Seismic Network |
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| Jia Jiong,Zhao Yingping,Wang Ning,Chang Liang,Li Dongsheng,Cai Lingling.Analysis of partition gauge function for local magnitude in Hebei Seismic Network[J].Seismological and Geomagnetic Observation and Research,2018,39(3):10-15. |
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| Authors: | Jia Jiong Zhao Yingping Wang Ning Chang Liang Li Dongsheng Cai Lingling |
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| Institution: | Hebei Earthquake Agency, Shijiazhuang 050021, China |
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| Abstract: | The 1 714 ML ≥ 0.1 earthquakes recorded by Hebei Seismic Network for 9 years were selected and the near-shock magnitudes were recalculated and compared using the old and new gauge functions, respectively. The actual measurement results show that the near-earthquake magnitudes obtained by the old and new gauge functions are in good agreement, and the number of earthquakes with ML magnitude deviation of ±0.1 are 1 556, which is approximately 91.8% of all earthquakes. The mean value and stander deviation of magnitudes of sampled earthquakes are smaller, so the usage of a zoning gauge function in Hebei District Network can improve the accuracy and availability of the near-magnitude magnitude. |
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| Keywords: | new gauge function epicenter distance magnitude deviation |
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