| 陕西泾阳4.8级地震前的波速比时空变化特征 |
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| 引用本文： | 王卫东,王平.陕西泾阳4.8级地震前的波速比时空变化特征[J].山西地震,1999(2):18-21. |
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| 作者姓名： | 王卫东 王平 |
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| 作者单位： | 陕西省地震局,陕西西安710068 |
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| 摘 要： | 利用陕西省地震台网的资料研究了１９９８年１月５日陕西泾阳Ｍｓ４．８地震前波速比的时空变化特征。结果表明，地震前其时间分布形态为持续低值异常—恢复—再次下降—拉锯式回升—发震。并对波速比异常的空间分布及其原因进行了初步的讨论。
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| 关 键 词： | 波速比 波速比异常 陕西 泾阳地震 |
Characteristics of Space Time Distribution of Seismic Wave Velocity Ratio before the Jingyang Earthquake with Ms4 8 |
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| WANG Wei,dong,WANG Ping.Characteristics of Space Time Distribution of Seismic Wave Velocity Ratio before the Jingyang Earthquake with Ms4 8[J].Earthquake Research in Shanxi,1999(2):18-21. |
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| Authors: | WANG Wei dong WANG Ping |
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| Abstract: | In this paper,by using the data recorded by Shaanxi seismic network,the temporal and spatial distribution features of seismic wave velocity ratio before Jingyang earthquake with Ms4 8 in 1998 is analyzed.The results show that temporal distribution is dropping to a low value anomaly for a while recovery dropping again zigzag recovery earthquake occurrence.The spatial distribution of anomalous region and its causes are then discussed preliminarily. |
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| Keywords: | Vp/Vs ratio Vp/Vs ratio anomaly Shaanxi Jingyang earthquake |
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