辽宁省金县台水准测量资料在海城地震及唐山地震前的异常变化已被广大地震工作者所确认。唐山地震后该台水准曲线基本形态未见明显的改变,即东西测线在七、八月份以后明显西倾,至年末逐渐恢复;南北测线呈现明显的周年变化。自1981年以后,曲线形态较之往年显得异常平稳(图1),东西测线在七、八月份以后西倾趋势不再出现;南 The abnormal changes of Jinxiantai leveling data of Liaoning Province before Haicheng earthquake and Tangshan earthquake have been confirmed by the majority of earthquake workers. After the Tangshan earthquake, the basic shape of the standard curve did not change significantly. That is, the east-west line obviously westward after July and August and gradually returned to the end of the year. The north-south line shows obvious annual changes. Since 1981, the curve shape has become more stable than in previous years (Figure 1). The trend of east-west line no longer appears after July and August; south