阿克苏周边地区中、强震前的形变异常特征分析

利用形态分析、一阶差分、矢量合成、固体潮汐分析等方法，对阿克苏周边地区中强地震前的形变异常特征进行了初步分析,发现部分中、强震前出现了较好的短临异常反应，而且异常演化过程比较完整。尤其在Ms≥6．0地震前，异常表现的更为突出。同时，不同地区、不同类型的地震前兆异常图像不尽相同，甚至差异较大。

ANALYSIS ON FEATURES OF DEFORMATION ANOMALY BEFORE MODERATE STRONG EARTHQUAKES ON THE PERIPHERY OF AKESU

By means of shape analysis, first-order difference, compositionof vector, solid tide analysis, the features of deformation anomaly before moderate, strong earthquakes on the periphery of Akesu were analyzed preliminarily. It is found that there are clear short-term and impending-earthquake anomalies appearing before some moderate, strong earthquakes, and the processes of anomaly evolutions are complete relatively. Especially before MS≥6.0 shocks, the anomalies are more distinguished; but the pattern of earthquake precursory anomaly is not very the same, it is various with earthquake-occurring area and earthquake type, and sometimes there is more difference between patterns.