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タイトル: 国府津-松田断層付近における精密重力測定
その他のタイトル: Precise Gravity Surveys across the Kozu-Matsuda Fault
著者: 井筒屋, 貞勝
田島, 広一
萩原, 幸男
村田, 一郎
著者(別言語): Izutuya, Sadakatu
Tajima, Hirokazu
Hagiwara, Yukio
Muraat, Ichiro
発行日: 1982年1月8日
出版者: 東京大学地震研究所
掲載誌情報: 東京大学地震研究所彙報. 第56冊第3号, 1982.1.8, pp. 595-602
抄録: The seismic activity on the Izu peninsula has gradually migrated northwards since 1974. It is desired therefore that, for detecting precursory crustal movements, geodetic measurements be concentrated in the northern part of the Izu peninsula. That part is well known as a region where the Philippine-Sea plate is in conflict with the Asian continent plate. The Kozu-Matsuda fault is considered to be an inland extension of the plate boundary "Sagami Trough". This paper reports the results of precise gravity surveys which have been annually conducted in the Kozu-Matsuda region since 1978. The temporal change in gravity detected there has a tendency to increase in the east side of the Kozu-Matsuda fault. This tendency is consistent with the eastward tilting motion which is detected by a buoy tiltmeter located near the Kozu-Matsuda fault, and also consistent with the releveling results of Geographical Survey Institute.
URI: http://hdl.handle.net/2261/12820
ISSN: 00408972


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