宮城県北部地震地域の重力測定

概要

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Gravity surveys in the northern part of Miyagi Pref. were carried out immediately after the earthquake which occurred in that district on April 30th, 1962. Comparing the results with those before the earthquake, differences in gravimeter readings along the leveling route were examined. (Fig. 2(2)) As shown in Fig. 2(1) and Fig. 2(2), these differences are closely correlated with the values of gravity along the same leveling route. This can be explained as being due to the difference of scale factor of the gravity meters used in each survey.
1962-11-30