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水口水库地震及其活动特征 被引量:18

RESERVOIR EARTHQUAKE OF SHUIKOU AND ITS ACTIVITY CHARACTERISTIC
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摘要 位于福建省闽江中游的水口水库,自1993年3月蓄水以来,诱发了一系列水库地震。研究表明,这些地震具有国内外一般水库地震的共同特征:库区为少震弱震区,地质构造复杂并存在活断层;震源浅,震中集中;地震与水位变化相关性好等。此外,还具有b值偏低,水位急剧升降引发地震特别敏感等个别特性。 Earthquakes of Shuikou reservoir located at middle of Minjing River have been induced since the reservoir impounded in March, 1993. After studying up, it is indicated that these earthquakes have common features as well as general reservoir earthquakes at home and abroad, that is, the reservoir area is a region where the number of earthquakes is less and magnitude lower; the geologic structure complex and the active fault in existence; the seismic sources shallower; the epicentral locations concentrative and the correlation between earthquake and water level good. Mire than that, the b value of the earthquakes is lower and those usually were induced just as the water level changes sharp.
机构地区 福建省地震局
出处 《华南地震》 1997年第2期83-89,共7页 South China Journal of Seismology
基金 福建省科委自然科学基金!<水口水库诱发地震的发展趋势及防震减灾对策的研究>
关键词 水库诱发地震 水位变化 地震活动性 地震工程 Reservoir induced earthquake, Water Level change, Seismic activity,Shuikou resrvoir
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