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地震预报在长、中、短、临四个阶段中起着不同的作用。长期预报无疑对工程建设与城市规划有重要作用;中期预报是划分地震危险警戒区和进一步做短、临预报的根据;而短、临预报则是震区能否避免人口伤亡和减少财产损失的最后与最重要的环节。1966年至1976年中国大陆地震强烈活动期间,在地震现场的实地观测和预报试验
Earthquake prediction plays a different role in four stages: long, medium, short and temporary. Long-term forecasting undoubtedly plays an important role in engineering construction and urban planning. Mid-term forecasting is the basis for the division of seismic hazard warning zones and further short-term and temporary forecasting. Short-term and temporary forecasts are whether earthquake zones can avoid population casualties and reduce property losses Last and the most important part. Field Observations and Prediction Experiments at Earthquake Sites During the Severe Earthquake Events from 1966 to 1976 in China