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a59b0p05.pdf | 5.85 MB | Adobe PDF | 見る/開く |
タイトル: | 焼岳火山地域における地動データの利用による土石流等発生位置の決定 |
その他のタイトル: | Relocation of Debris Flow around the Yake-dake Volcano and Kamikochi Area, Central Japan, Using Ground Motion Data Recorded by Seismometers |
著者: | 大見, 士朗 |
著者名の別形: | OHMI, Shiro |
キーワード: | 土石流 位置決定 地動データ 焼岳火山 上高地 debris flow relocation ground motion data Yake-dake volcano Kamikochi |
発行日: | Jun-2016 |
出版者: | 京都大学防災研究所 |
誌名: | 京都大学防災研究所年報. B |
巻: | 59 |
号: | B |
開始ページ: | 48 |
終了ページ: | 56 |
抄録: | We demonstrated to determine the location and origin time of the debris flow using the ground motion data recorded with short period seismometers around the Yake-dake volcano and Kamikochi area, central Nagano prefecture, Japan. Seismic waves radiated from the debris flow are assumed as the surface wave and their location and origin time are determined so that RMS of the difference between theoretical and observed amplitude of the seismic signal are minimized by grid search method. We applied this procedure to the ground motion data of the debris flow that occurred near Ubuya-sawa valley, Kamikochi area in June 23, 2011 and could determine the location and time which well coincide with other filed investigations. We suppose this method can be one of the powerful tools to determine the location and the origin time of the mass movement phenomenon such as not only debris flow but also pyroclastic flow around the volcanoes. |
URI: | http://hdl.handle.net/2433/217317 |
関連リンク: | http://www.dpri.kyoto-u.ac.jp/nenpo/nenpo.html |
出現コレクション: | Vol.59 B |
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