著者

萩原 尊禮

出版者

東京帝国大学地震研究所

雑誌

東京帝国大学地震研究所彙報 (ISSN:00408972)

巻号頁・発行日

vol.17, no.3, pp.627-637, 1939-09-20

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A strong earthquake occurred in the neighbourhood of Ogasima, a small peninsula in Akita Prefecture, at 14 h 58m, May 1st, 1939. Shocks of the same magnitude occurred twice with an interval of 2 minutes. Several hundreds of dwelling houses in the peninsula were demolished and 29 persons killed. The damage was increased by the landslip caused by the earthquake. The number of houses demolished as the direct result of the earthquake shock are shown in Fig. 2.

著者

萩原 尊禮

出版者

東京帝国大学地震研究所

雑誌

東京帝国大学地震研究所彙報 (ISSN:00408972)

巻号頁・発行日

vol.16, no.4, pp.779-783, 1938-11-20

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A mud avalanche occurred at Mt. Tukuba, Ibaraki prefecture, on July 3, 1938. In flowing down the valley it swept away two wooden buildings and killed three men. The avalanche was caused by collapse of soil in the upper waters of the valley as the result of heavy rains. The velocity of the flow was estimated to be less than 10 meters per second.