The vertical movements of the land around the Bay of Ise are discussed not only by using the results of the precise levellings during 75 years from 1.885 to 1960, but also by the data of sea levels at mareograph stations. The yearly changes of land levels are of the order of centimeter and the greater part of the land in this region tends to subside. The rate of subsidence seems to increase with year. The largest amount of subsidence since 1885 is found to be in the area between the rivers of Kiso and Nikko, i.e. B.M. 1473, whereas the largest rate of subsidence during recent years is not appeared at B.M. 1473 but B.M. 1474-1475 and B.M. 1470. Further, the secondary variation of vertical land movements takes an undulatory form. This secondary undulatory movement is overlapping to the foundamental subsidence. The vertical earth movements are related to the geologic structure in this area.
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