| 东江水库地震活动特征 |
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| 引用本文： | 杨国周.东江水库地震活动特征[J].华南地震,1998,18(2):78-83. |
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| 作者姓名： | 杨国周 |
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| 作者单位： | 湖南省郴州市地震办公室!郴州423000 |
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| 摘 要： | 东江水库自1986年蓄水以来,在库区出现了频繁的地震活动,延续时间已达10年,最大地震为M_L 3.2级.分析认为,这些地震具有国内外一般水库地震的共同特征,属于水库诱发地震,其序列特征属震群型.由于水库坝高、容量大,且库区有活动断层和岩溶发育,诱震机制可能为荷载效应、断层孔隙水压效应和岩溶塌陷.
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| 关 键 词： | 水库地震 地震活动性 诱震条件 东江水库 |
AN ANALYSIS OF DONGJIANG RESERVOIR EARTHQUAKE AND ITS SEISMICITY CHARACTERISTICS |
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| Yang Guozhou Ou Yang Huang Seismological Office of Chemhou city,Chemhou.AN ANALYSIS OF DONGJIANG RESERVOIR EARTHQUAKE AND ITS SEISMICITY CHARACTERISTICS[J].South China Journal of Seismology,1998,18(2):78-83. |
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| Authors: | Yang Guozhou Ou Yang Huang Seismological Office of Chemhou city Chemhou |
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| Institution: | Yang Guozhou Ou Yang Huang Seismological Office of Chemhou city,Chemhou 423000 |
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| Abstract: | Since Dongjiang reservior being filled in 1986, the earthquake events occured frequently in this, area for as long as ten years, the largest of them is ML3.2. After analyzed the data, it is believed that these earthquakes have common characteristics as well as general resevior earthquakes at home and aboard. They belong to reservoir induced earthquakes. Their sequences of events are the type of swarms. As the dam is high and the reseroir's volume is very large , and there are active fault in the reservoir area and karst develops very well, the mechanism of earthquake inducement may be caused by load, pore water pressure and karst subsidence. |
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| Keywords: | Reservoir earthquake Seismic activity Inducing earthquake condition Dongjiang reservior |
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