摘要
结合阿克苏台周边5级以上中强地震和100 km范围内的4级地震,对阿克苏台跨断层形变资料进行分析。分析结果表明,断层的垂直、水平位移形变异常变化与中强地震活动有明显的对应关系。在监控区350 km范围内的中强地震前,垂直形变异常形态表现为次波效应,而水平形变在100 km范围内的4级地震前则出现明显的伸长或缩短的异常特征。
Combining the moderately strong earthquakes above Ms5.0 in near field and Ms4.0 earthquakes about 100 km around the station, the author analyzed the Aksu fault-crossing deformation observation data. The results showed that there were good matchup between the vertical and horizontal displacement deformation of fault and the moderately strong earthquakes. The alinormity of vertical deformation before moderately strong earthquakes is secondary wave effect, but abnormity of horizontal deformation before Ms4.0 earthquakes are obvious elongation and shortening.
出处
《内陆地震》
2009年第1期49-55,共7页
Inland Earthquake
基金
新疆地震科学基金项目(200601)资助
关键词
跨断层
地形变
地震前兆
阿克苏
新疆
Fault-crossing, Earth deformation
Earthquake precursor
Aksu
Xinjiang
