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地震方法是评价断层活动性的主要手段之一．调查活动断层所使用的地震方法有反射纵波和剪切波分裂法．在对基岩断层的活动性评价中，反射纵波法根据基岩断层是否向上延伸到第四系Ｑ３地层内，而剪切波分裂法则根据由剪切波分裂所确定的Ｑ３地层内的各向异性．当基岩断层向第四系延伸幅度较大，即第四系地层内断层落差较大时，可采用反射纵波法；当基岩断层活动引起的第四系地层内的断层落差较小，反射纵波法不能对其分辨时，可采用剪切波分裂法．
Seismic method is one of the main means to evaluate fault activity. Seismic methods used to investigate active faults include reflected longitudinal and shear-wave splitting. In the evaluation of the activity of bedrock faults, the reflection longitudinal wave method extends into the Quaternary Q3 formation according to the bedrock fault, and the shear-wave splitting rule is based on the directions of Q3 stratigraphy determined by shear-wave splitting opposite sex. When the bedrock fault to the Quaternary extension of a large range, that is, the Quaternary strata within the fault drop larger, the use of reflected longitudinal wave method; when the bedrock fault activity Quaternary strata within the fault drop is small, reflection The longitudinal wave method can not be resolved, the shear wave splitting method can be used.