| 1995年苍山5.2级地震前应力场的动态变化 |
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| 引用本文： | 周翠英 华爱军. 1995年苍山5.2级地震前应力场的动态变化[J]. 地震地质, 1997, 19(2): 40-140 |
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| 作者姓名： | 周翠英 华爱军 |
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| 作者单位： | 山东省地震局 |
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| 摘 要： | 从１９９５年９月２０日山东苍山５．２级地震前源区及其附近不同小区应力场方向的动态变化入手，分析了主应力轴方位、仰角及其矛盾符号比等参量在５．２级地震前的异常变化及其时空演变特点，简析了可能成因，可为研究震前其它各类前兆异常提供背景依据
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| 关 键 词： | 应力场 异常 震源区 |
DYNAMIC CHANGES OF STRESS FIELD BEFORE THE CANGSHAN M 5.2 EARTHQUAKE IN 1995 |
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| Zhou Cuiying Hua Aijun Wang Mei Zhang Lairong Ma Yuxiang. DYNAMIC CHANGES OF STRESS FIELD BEFORE THE CANGSHAN M 5.2 EARTHQUAKE IN 1995[J]. Seismology and Geology, 1997, 19(2): 40-140 |
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| Authors: | Zhou Cuiying Hua Aijun Wang Mei Zhang Lairong Ma Yuxiang |
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| Abstract: | An earthquake of M 5.2 occurred in Cangshan, Shandong Province on September 20, 1995. Abnormal changes and their time space evolutionary features of the azimuth and plunge of the principle stress axes and ratio of their contrary symbols before this event are analysed. Possible causes of these changes are briefly discussed which can provide background evidence for studies of other kinds of precursorary anomalies. |
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| Keywords: | Stress field Anomaly Focal region |
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