1984年地殻傾斜観測資料集 : 関東・東海地域地殻活動観測網

概要

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The National Research Center for Disaster Prevention is conducting the crustal tilt observation in the Kanto--Tokai area in the central Japan for the purpose of earthquake prediction, by using the borehole--type tiltmeters. The tiltmeters are installed at the bottom of the observation wells of which the standard depth is 100m except three deep wells. The output voltage proportional to the ground tilting at each site is transmitted to the NRCDP at Tsukuba in Ibaraki Prefecture by the PCM telemetry system, and recorded on magnetic tapes by the real time processor. Three new stations began to operate in 1984, in addition to the eighteen stations where the stationary observation had been carried out since 1978. Here, we report tilt changes at the twenty one stations for 1984. The results are illustrated in two kinds of diagrams : annual plots of daily means and monthly plots of hourly data. For reference, we plot daily precipitation at each station, too.
独立行政法人防災科学技術研究所の論文
1986-06-23