| 太原基准地震台核爆震相识别 |
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| 引用本文： | 靳玉贞,刘炜,何佳,杨世英,孟彩菊,刘晓萍.太原基准地震台核爆震相识别[J].地震地磁观测与研究,2019,40(4):59-64. |
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| 作者姓名： | 靳玉贞 刘炜 何佳 杨世英 孟彩菊 刘晓萍 |
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| 作者单位： | 中国山西030025 太原基准地震台;中国山西030025 太原大陆裂谷动力学国家野外科学观测研究站;中国山西030025 太原大陆裂谷动力学国家野外科学观测研究站;中国山西037006 大同中心地震台;中国山西030025 太原大陆裂谷动力学国家野外科学观测研究站;中国山西0370900 祁县地震台 |
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| 基金项目： | 山西省地震局科研项目（项目编号：SBK-1305） |
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| 摘 要： | 对太原基准地震台记录的核爆及天然地震波形进行对比分析，结果显示：①与天然地震相比，核爆震相特征相对独特；②地震优势频率较窄，而核爆优势频率则较宽，即对于震中距相近、当量不同的核爆波形，太原台记录的时频变化特征相似；③对于震中距相近的天然地震与核爆波形，太原台记录的时频特征差异明显。
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| 关 键 词： | 核爆 地震 频谱 |
Identification of nuclear explosion waveform recorded by Taiyuan Fundamental Seismic Station |
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| Jin Yuzhen,Liu Wei,He Jia,Yang Shiying,Meng Caiju,Liu xiaoping.Identification of nuclear explosion waveform recorded by Taiyuan Fundamental Seismic Station[J].Seismological and Geomagnetic Observation and Research,2019,40(4):59-64. |
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| Authors: | Jin Yuzhen Liu Wei He Jia Yang Shiying Meng Caiju Liu xiaoping |
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| Institution: | 1.Taiyuan Seismic Station, Shanxi Province 030025, China;2.National Continental Rift Valley Dynamics Observatory of Taiyuan, Shanxi Province 030025, China;3.Datong Central Seismic Station, Shanxi Province 037006, China;4.Qixian Earthquake Agency, Shanxi Province 030900, China |
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| Abstract: | Comparing the waveform of nuclear explosions with that of the natural earthquakes recorded by Taiyuan Fundamental Seismic Station, the paper obtains the results as follows:①The phase characteristics of nuclear explosion are unique compared with that of natural earthquakes;②The dominant frequency band of natural earthquakes is narrow and that of nuclear explosions is relatively wider. Waveform from nuclear explosions with similar distance but different TNT equivalent has similar time-frequency features; ③Waveform from natural earthquakes and nuclear explosions with similar distances has quite different time-frequency features. |
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| Keywords: | nuclear explosion earthquake spectrum |
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