中文摘要：

采用分布在南北地震带上10个洞体应变台的观测资料，基于小波分解和范数计算，提取20130722甘肃岷县-漳县M6．6地震前异常信息。结果表明，除肃南台外，其余9个台均出现震前异常信息，昭通台、小庙台最早出现异常，在2013-06初（约在震前50d），距震中最近的宕昌台在7月初出现异常。结合其他学者的研究，对异常信息特征进行讨论认为，这次地震与南北地震带东侧块体自南向北运动有密切关系，而震后的形变传递过程是一个反向过程。同时也证明，用范数计算方法提取震前形变异常是简单、有效和可靠的。

英文摘要：

Using the observation data from 10 North-South seismic belt hole strain stations, based on wavelet decomposition and norm calculation, we acquire anomaly information from the Minxian-Zhan- gxian earthquake M6.6 （Jul. 22,2013）. The results show, in addition to Sunan station, the rest of the 9 stations present anomaly information before the earthquake. The earliest anomalies occur in early Jun 2013 （about 50 days before the earthquake） ; at Dangchang station, which is nearest to the epicen- ter, anomalies occur in early July 2013. Combined with other research results, the characteristics of abnormal information are discussed. We believe that there is a close relationship between it and the movement of eastern side from south to north in South- North seismic belt. The deformation transfer process after the earthquake is a reverse direction process. In addition, it is proved that the method is simple, effective and reliable to extract the deformation anomaly before the earthquake.