著者

古谷 尊彦

出版者

京都大学防災研究所

雑誌

京都大学防災研究所年報. B = Disaster Prevention Research Institute Annuals. B (ISSN:0386412X)

巻号頁・発行日

vol.17, no.B, pp.259-264, 1974-04-01

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A large part of Mt. Mayo collapsed in 1792. The landslide has been attributed to two causesone a volcanic explosion and the other an earthquake. The latter cause has been stated by a recentexplorer.The writer has carried out geomorphological studies of the Mayu-yama great landslide bycomparing it with the same phenomena in other places. The results of the studies are as follows.1) Mayu-yama is composed of large hourse-shoe shaped cliff and many small hills spread overit's front area.2) The same topography is recognized in the volcanic area in every other place, and it is well-known having been discovered in the twenty-Ist year of the Meiji eruption of Mt. Bandai.3) In view of those facts, the cause of Mayu-yama great landslide seem to have derived froma volcanic explosion due to conditions existing at the time.