近几年来,世界各国在研究地震预报的方法上对于地形变的观测越来越重视,地形变观测数据不但广泛地用来解释各地近代地壳运动的特性,以预测中,长期地震的趋势,而且在探测断层活动,测定特定区域的地壳形变,在地震短期预报的领域内也开始运用。 In recent years, all countries in the world have paid more and more attention to the observation of the earthquakes in the methods of earthquake prediction. The data of the earthquakes are not only widely used to explain the characteristics of the modern crustal movement in various places, but also to predict the trend of medium- and long-term earthquakes. In the detection of fault activity, the determination of crustal deformation in a particular area also began to be used in the field of short-term earthquake prediction.