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对四川及邻区五十年代至八十年代的精密水准复测资料进行处理,绘制了四川及邻区的地壳重直形变速率图、垂直形变速率梯度图和垂直形变速率梯度矢量分布图。结合研究区内构造特征,对上述图件进行分析。指出数处呈四象限分布的图像,结合地震活动进行解释,确定了研究区未来的地震危险区。
The precision leveling data from 1950s to 1980s in Sichuan and its neighboring areas were processed and the Crustal deformation, Vertical deformation rate and Vertical deformation rate gradient distribution in Sichuan and its adjacent areas were plotted. Combined with the structural characteristics of the study area, the above figure is analyzed. It is pointed out that there are four quadrants distribution images in several places and interpreted in combination with seismic activities to determine the future earthquake risk area in the study area.