吉野郡水災誌小字地名にもとづく1889(明治22)年十津川災害崩壊地の比定

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書誌事項

タイトル別名
  • Identification of Landslide Localities Occurred in 1889 (<i>Meiji</i>-22) Based on Koaza Names in Yoshinogun-Suisaishi
  • ヨシノグン スイサイシ コアザ チメイ ニ モトズク 1889 メイジ 22
  • South- and East-Totsukawa
  • 南十津川・東十津川

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抄録

A large number of gigantic landslides were triggered by typhoon rain in 1889 over the Totsukawa area, Nara prefecture, resulting a serious hazard. Their localities are identified exactly based on the Koaza name in the historical record, the Yoshinogun-Suisaishi. The identification of landslide localities over South- and East-Totsukawa areas was tried this time, and the results were summarized.<br>Landslide larger than 4×104m2 in area have been shown by cliff marks on the topographic map in 1911 (Meiji-44) as same as in the case of West-Totsukawa area reported before. Topograhic features of gigantic landslides are still recongnized clearly on the aerial photos in 1953 taken even 65 years after the hazard.<br>Description of the localities by Koaza name is frequent at the portions near the settlements or along the trafic routes at that day. In addition, some exaggeration in total number of large landslides is detected, if compared with the number of criff marks in the topographic maps in, 1911, even taking into account of the difference in threshold magnitude for description. Despite these biassed nature, it is clearly true that the Yoshinogun-Suisaishi surves the extraordinarily detailed record of the landslide localities, and this has come from the timing that the hazard occurred just after the detailed survey and registration of land-owner relationship there.

収録刊行物

  • 人文地理

    人文地理 43 (5), 493-503, 1991

    一般社団法人 人文地理学会

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