Two felt earthquakes of magnitude about 4 with rumbling of the earth, occurred at 02h46m and 03h20m (J.S.T.) Aug. 13, 1969 in the northern parts of Kanuma city, Tochigi Prefecture. To explain the cause and feature of the felt shocks and earthquake sounds which continued from that time, a temporary micro-seismic observation was carried out at Furumine Shrine, Kobugahara, Tochigi Prefecture about 15 km west of the epicenters, from Aug. 29 to Sept. 6 using the tripartite array net and from Sept. 6 to Oct. 6 with one component monitoring system. A block diagram and a sensitivity curve of the instrumentation used are given in Figs. 1 and 2. Tripartite stations were occupied, as shown in the map of Fig. 3, near the temporary observation room of Furumine Shrine.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
48
号
1
ページ
53 - 63
発行年
1970-03-31
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
日本十進分類法
453
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute, University of Tokyo
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4.栃木県・古峰ケ原における極微小地震観測 : 1969年8月13日の地震の余震観測
ji0481004.pdf
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