渤海大震(1969.7.28)后,李四光教授就指出:辽东半岛值得注意。当时的地质部所属有关单位立即在辽东半岛着手建立地应力和地形变等地震预测实验站。其中的金县水准观测站、大连和沈阳地应力观测站的资料,在海城地震的中一短期预报中起到了重要作用。但临震预报主要是根据测震资料和宏观异常等发出的。对1975年2月4日海城大震的预报是成功的,对于预防地震灾害起到良好效果。 After the great earthquake in Bohai Sea (1969.7.28), Professor Li Siguang pointed out: Liaodong Peninsula is worth noting. At the time of the relevant units of the Ministry of Geology immediately set up in Liaodong Peninsula, earth stress and deformation and other earthquake prediction experimental station. Among them, the data of Jinxian leveling station, Dalian and Shenyang earth stress observatories have played an important role in the short-term forecast of Haicheng earthquake. However, the prediction of temporary earthquakes is mainly based on seismic data and macro anomalies. The prediction of Haicheng earthquake on February 4, 1975 was successful, and it was effective in preventing earthquakes.