临震电磁波辐射与电磁扰动的现象,早在1966年邢台地震时就引起了人们的注意。1975年海城地震和1976年唐山大震后,一些单位从不同的方面开展了观测研究工作。我省一些中强震震前也曾出现过不同表现形式的电磁波辐射与电磁扰动现象。如1970年10月29日金湖4.2级地震前约2小时,震中区一鱼场工人发现收音机受到强烈干扰,震后即恢复正常;1974 Pro-seismic electromagnetic radiation and electromagnetic disturbance phenomenon, as early as the 1966 Xingtai earthquake caused the people’s attention. After the Haicheng earthquake in 1975 and the 1976 Tangshan earthquake, some units conducted observation and research work from different aspects. Some moderately strong earthquakes in our province have also had different manifestations of electromagnetic radiation and electromagnetic disturbances before the earthquake. For example, workers in a fish farm in the epicenter area were strongly disturbed by radio waves about 2 hours prior to the 4.2 magnitude earthquake on October 29, 1970, and returned to normal after the earthquake. 1974