首页 | 本学科首页   官方微博 | 高级检索  
     检索      

龙潭水库诱发地震震源参数分析
引用本文:乔慧珍,张永久,任月霞,宫悦,赵敏.龙潭水库诱发地震震源参数分析[J].四川地震,2011(4):16-20.
作者姓名:乔慧珍  张永久  任月霞  宫悦  赵敏
作者单位:四川省地震局,四川成都,610041
基金项目:地震科技星火项目(XH1022)
摘    要:利用广西龙滩水库地震台网记录的数字地震波资料,用波谱分析方法计算了龙滩水库库区ML2.5—4.5级共计95个地震的震源参数。并对震源参数进行分析,结果表明:库区视应力的范围在0-3.5巴之间,2007年7月17日库区最大4.5级地震的视应力最大,为3.07巴。视应力随震级的增大呈幂函数增大趋势,两者的拟合关系为:σap...

关 键 词:龙滩水库  震源参数  地震波  水库地震

Source parameters analysis of the induced earthquakes around the Longtan Dam
QIAO Hui-zhen,ZHANG Yong-jiu,REN Yue-xia,GONG Ye,ZHAO Ming.Source parameters analysis of the induced earthquakes around the Longtan Dam[J].Earthquake Research in Sichuan,2011(4):16-20.
Authors:QIAO Hui-zhen  ZHANG Yong-jiu  REN Yue-xia  GONG Ye  ZHAO Ming
Institution:QIAO Hui-zhen,ZHANG Yong-jiu,REN Yue-xia,GONG Ye,ZHAO Ming(Earthquake Administration of Sichuan Province,Sichuan Chengdu 610041,China)
Abstract:By using the digital seismic wave recording data from the Seismic Network of Longtan Dam, Guangxi Province, the earthquake source parameters is calculated with the method of seismic wave spectral analysis. Our calculation shows that the apparent stress values around Longtan Dam range from 0 to 3.5 Pa and the apparent stress drop caused by an M4.5 Earthquake on 17 July 2007 is 3.07 Pa. The apparent stress drop changes with the power law of the earthquake magnitude. The fitting relation is:σapp=0.0046M^4.34, and R^2 =0.71. The average apparent stress of the dam area is higher than that of northern and western area. The corner frequency has increased with the time since October 2008. The calculation results show that the earthquake magnitude around the dam does not get big and the break length of earthquakes gets smaller and so the apparent stress decrease.
Keywords:Longtan Dam  Source parameter  seismic wave  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号