Some important characteristics of apparent slowness used in the earthquake locations by seismological array station and by seismographic network in Shanghai are discussed too.

• 阐述了台阵的地震定位原理和视慢度在台阵与台网定位中的一些重要特性,并比较了相同位置上的上海地震台阵与台网对同一地震的定位结果。