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タイトル: 10. On the Tsunami which accompanied the Earthqtiake off the Northwest of Oga on May 7, 1964
その他のタイトル: 10. 昭和39年5月7日の男鹿北西沖地震の津波について
著者: HATORI, Tokutaro
著者(別言語): 羽鳥, 徳太郎
発行日: 1965年7月15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43冊第1号, 1965.7.15, pp. 149-159
抄録: The tsunami, which was generated off the northwest of Oga Peninsula in Akita Prefecture, at 16 h 58m 7.7s(JST), May 7, 1964, was observed at many tide-gauge stations along the coast of the Japan Sea. The heights of tsunami were small. The epicenter of the earthquake was at 40°20'N, 139°00'E, with a depth of Okm and magnitude 6.9. The generating area of tsunami, which was extended 50~70km was estimated by means of an inverse refraction diagram from eight tide-gauge stations. At all the stations inspected, the initial motion of the tsunami was found to be directed upwards, showing that the crustal deformation which caused the tsunami was probably an upheaval in the source area. Generally speaking, the upheaval seems to have been small but somewhat conspicuous in the northeastern part of the tsunami source area.
URI: http://hdl.handle.net/2261/12191
ISSN: 00408972


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