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タイトル: 6.伊豆下田に於ける過去地震津浪の高さ
その他のタイトル: 6.Heights of Tunamis at Simoda in Southern Idu Peninsula.
著者: 福富, 孝治
著者(別言語): Fukutomi, Takaharu
発行日: 1936年3月20日
出版者: 東京帝国大学地震研究所
掲載誌情報: 東京帝国大学地震研究所彙報. 第14冊第1号, 1936.3.20, pp.68-74
抄録: During 450 years from the middle years of the Asikaga era up to present, Town Simoda in southern Idu Peninsula was frequently submerged under the waters and lost many lives by 7 tunamis caused by marine earthquakes and 2 kazetunamis caused by typhoon. This is one of the most powerful reasons for her gradual decline, in spite of her prosperity in the later years of Tokugawa era. The writer picked up some suggestive facts about the heights of the tunamis from the old records of these calamities and required the heights of the tunamis from the present mean sea-level by levelling method. And get 2.5m, 3.6m and 4.5m for the tunamis in 1703, 1707 and 1854. The heights of the tunamis which were caused by the great Kwanto earthquake of 1923 could be told by the indisputable traces left on the walls of the houses at Simoda even nearly 12 years after that. Thus, the heights of 26 points from the mean sea-level were determined with a "Y" level as shown in Fig.4. The numerals near the small black circles are the reduced heights of the water in cm, while the numerals in bracket are the heights of the ground. The boundaries of the inundated areas are shown with hatchings, and the full and broken lines are contour lines of the heights of the tunamis and geographical features respectively. It is very noticeable that the epicentres of the earthquakes which caused the above-mentioned tunamis at Simoda are distributed in far great areas in the outer zone of Japan Arc extending from off Boso Peninsula to off the coast of Sikoku.
URI: http://hdl.handle.net/2261/10246
ISSN: 00408972
出現カテゴリ:東京大学地震研究所彙報
東京大学地震研究所彙報

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