| 区域地震事件的纵横波差异与震源类型 |
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| 引用本文： | 魏富胜,许忠淮,郭祥云,赵永.区域地震事件的纵横波差异与震源类型[J].地震地磁观测与研究,2010,31(6):20-27. |
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| 作者姓名： | 魏富胜 许忠淮 郭祥云 赵永 |
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| 作者单位： | [1]中国地震局地球物理研究所,中国北京100081 [2]中国地震台网中心,中国北京100045 |
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| 基金项目： | 地震行业专项基金课题:，中国地震局地球物理研究所论著 |
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| 摘 要： | 简要介绍地震与爆炸的震源物理性质及地震波激发机制特征。利用地震观测波形直达纵横波震相能量释放的差异,在时间域引进标志事件震源性质的参量a。132个台站记录的22个不同震源类型事件的计算结果表明,a值具有震源性质依附效应,展现出在事件识别领域的应用前景。
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| 关 键 词： | 识别判据α 核爆炸识别 爆炸与地震 波形复杂性 纵横波能量 |
Difference in P-and S-wave energy of regional seismic events for source type discrimination |
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| Wei Fusheng,Xu Zhongjuai,Guo Xiangyun,Zhao Yong.Difference in P-and S-wave energy of regional seismic events for source type discrimination[J].Seismological and Geomagnetic Observation and Research,2010,31(6):20-27. |
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| Authors: | Wei Fusheng Xu Zhongjuai Guo Xiangyun Zhao Yong |
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| Institution: | 1 Institute of Geophysics, China Earthquake Administration, Beijing 100081, China ;2) China Earthquake Networks Center, Beijing 100045, China) |
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| Abstract: | Characteristics of source physics and wave radiation mechanism of the earthquakes and ex- plosions are briefly introduced. Based on the difference in observed direct P-and S-wave energy, a discriminator a indicating source characteristics is defined in time domain of seismic records. The analyzed result of the 132 station records from 22 seismic events with different source types indicates that the a values does vary with source types, showing prospective applicability in seismic source discrimination. |
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| Keywords: | discriminator a nuclear explosion identification explosions and earthquakes waveform complexity P-wave and S-wave energy |
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