The southern part of the Kanto District is one of the hotbeds of destructive earthquakes in Japan, where a series of steplike upheavals produced by past earthquakes can be found along its southern coast. Fortunately abundant data of geodetic surveys are available which have been made during the past 80 years in this region. First of all, the secular variation in the physical height of the datum for leveling can be derived by using the variation which is common to they surrounding bench marks located on the stable ground. After correcting for this variation of the datum, a number of leveling surveys are reduced into 5 epochs, i.e., 1884.7, 1896.4, 1925.3, 1931.2, and 1950.7. The vertical movements of the ground between two consecutive epochs are shown in Figs. 2, 3, 4, and 5. Fig. 3 shows. the abrupt movements in 1923. It is clearly seen that the post-seismic movements; in the region measuring about 100 km × 100 km is entirely reverse of the pre-seismic ones in pattern. The crustal movements in the Miura Peninsula are more fully discussed by using 14 series of leveling survey which were made after the earthquake of 1923.. Removing the effects due to ground movements from the yearly mean sea level from 1923 to 1963 at the Aburatsubo tidal station, the variation due to the 18.6 year tide and to the eustatic uplift of the sea level are clearly seen (Fig. 7). Also by removing the effects due to these two causes from the observed mean sea level: from 1897 to 1923, the crustal movements in this period can be obtained (Fig. 9). This is a very good supplement because in this period the leveling survey was made only once and information from it is lacking. A curious fluctuation of the ground is seen before the earthquake of 1923. The recovery movements after the abrupt upheaval at the time of the earthquake appears to have continued up to the present.