| 利用sPn震相测定台湾海峡M6.2地震震源深度 |
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| 引用本文： | 陈惠芳,林彬华,张燕明,蔡杏辉,于伟恒.利用sPn震相测定台湾海峡M6.2地震震源深度[J].大地测量与地球动力学,2021,41(8):853-857. |
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| 作者姓名： | 陈惠芳 林彬华 张燕明 蔡杏辉 于伟恒 |
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| 作者单位： | 福建省地震局,福州市华鸿路7号,350003;福建省地震局,福州市华鸿路7号,350003;福州大学土木工程学院,福州市学园路2号,350116 |
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| 摘 要： | 采用波形互相关技术获得Pn震相准确到时，然后应用滑动时窗相关法获取sPn与Pn震相的走时差，通过该走时差测定台湾海峡M6.2地震震源深度为14.7 km，并对测定的结果进行分析解释。对比本文计算结果与CAP方法的反演结果得出，本文研究方法更加方便、快捷、精确。
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| 关 键 词： | 台湾海峡地震 震源深度 sPn震相 波形互相关 滑动时窗相关法 |
Precise Determination of the Focal Depth of Taiwan Strait M6.2 Earthquake by sPn Phase |
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| CHEN Huifang,LIN Binhua,ZHANG Yanming,CAI Xinghui,YU Weiheng.Precise Determination of the Focal Depth of Taiwan Strait M6.2 Earthquake by sPn Phase[J].Journal of Geodesy and Geodynamics,2021,41(8):853-857. |
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| Authors: | CHEN Huifang LIN Binhua ZHANG Yanming CAI Xinghui YU Weiheng |
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| Abstract: | The accurate arrival times of Pn phase are first obtained by waveform cross-correlation technique, and then we use the sliding window correlation method to get the time differences of the sPn and Pn phases. The time differences results of sPn and Pn phases are used to obtain the epicenter depth of the M6.2 Taiwan strait earthquake, which is 14.7 km. We present a comprehensive interpretation and analysis. Finally, the results of this paper are compared with inversion results of CAP method which shows our method is more convenient, precise and faster. |
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| Keywords: | Taiwan strait earthquake focal depth sPn phase waveform cross-correlation sliding window correlation method |
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