屯鶴峯地殻変動観測所における地殻変動観測(第3報)

Abstract

Records observed with high sensitivity extensometers and tiltmeters should be contained a largeamount of variations by instrumental drift, local effect and others. In order to distinguish betweencrustal deformation and other variations, the comparative observations with various instrumentshave been carried out at Donzurubo Crustal Movement Observatory. As the result of these observa-tion, discrepancy in variation was large at initial stage but it has become smaller recently.