Combined with the data of geological structure in the Yinchuan area,the earthquake azi-muth anomalies in the Lingwu-Wuzhong area recorded by Yinchuan Station are discussed and analyzed.

• 结合区域地质构造资料，对银川台记录到的灵武、吴忠地区地震资料中出现的方位异常现象进行了探索性的分析。