| 高阶统计量及AIC方法在区域地震事件和直达P波初动识别中的应用 |
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| 引用本文： | 赵大鹏,刘希强,刘尧兴,王志铄,赵晖,张亚琳.高阶统计量及AIC方法在区域地震事件和直达P波初动识别中的应用[J].地震地磁观测与研究,2013(5):61-69. |
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| 作者姓名： | 赵大鹏 刘希强 刘尧兴 王志铄 赵晖 张亚琳 |
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| 作者单位： | [1]河南省地震局,中国郑州450016 [2]山东省地震局,中国济南250014 |
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| 基金项目： | 国家科技支撑计划课题（2012BAK19B04）和中国地震局地震科技星火计划攻关项目（XH12029）资助 |
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| 摘 要： | 利用高阶统计量（偏斜度和峰度）与赤池信息量准则（简称AIC）相结合,进行区域地震事件实时检测和P波初至精细识别的新方法研究,通过处理山东地震台网记录的地震波资料,结果表明：应用高阶统计量（偏斜度和峰度,尤其是峰度）能够有效识别地震事件,降低地震事件的错误报警率和漏报率;与人工识别震相到时结果相比,根据Ske-AIC、Kur-AIC震相自动识别方法得到的震相到时的平均绝对值误差小.
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| 关 键 词： | 高阶统计量 AIC 地震事件识别 震相识别 |
Detection of regional seismic events by high order statistics method and automatic identification of direct P-wave first motion by AIC method |
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| Zhao Dapeng,Liu Xiqiang,Liu Yaoxing,Wang Zhishuo,Zhao Hui,Zhang Yalin.Detection of regional seismic events by high order statistics method and automatic identification of direct P-wave first motion by AIC method[J].Seismological and Geomagnetic Observation and Research,2013(5):61-69. |
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| Authors: | Zhao Dapeng Liu Xiqiang Liu Yaoxing Wang Zhishuo Zhao Hui Zhang Yalin |
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| Institution: | 1.Earthquake Administration of Henan Province, Zhenzhou 450016, China; 2.Earthquake Administration of Shandong Province, Jinan 250014, China;) |
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| Abstract: | Basing on high order statistics and AIC method,we put forward new methods for real-time detection of regional earthquake event and automatic identification of direct P-wave first motion,and apply it to process seismic data recorded by Shandong Seismic Network.The results show as follows：①The high order statistics method （skewness and kurtosis,kurtosis especially） effectively detect earthquake events,and may effectively reduce false alarm and missing report rates;②Compared with phase arrival time results in manual identification,average absolute error of phase arrival time in automatic identification based on Kur-AIC and SkeAIC method are （0.09±0.08）s and （0.06±0.14）s,respectively. |
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| Keywords: | high order statistics AIC earthquake identification phase identification |
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