Generation mechanism of large later phases of the 2011 Tohoku-oki tsunami causing damages in Hakodate, Hokkaido, Japan
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- 資料種別
- 記事
- 著者・編者
- Yuichiro TaniokaMizuho ShibataYusuke Yamanaka
- 出版年月日等
- 2019-03-27
- 出版年（W3CDTF）
- 2019-03-27
- タイトル（掲載誌）
- Progress in earth and planetary science
- 巻号年月日等（掲載誌）
- 6(30）
- 掲載巻
- 6(30）
- ISSN（掲載誌）
- 2197-4284
- ISSN-L（掲載誌）
- 2197-4284
- 本文の言語コード
- eng
- DOI
- 10.1186/s40645-019-0278-x
- 国立国会図書館永続的識別子
- info:ndljp/pid/11340129
- コレクション（共通）
- コレクション（障害者向け資料：レベル1）
- コレクション（個別）
- 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他
- 収集根拠
- オンライン資料収集制度
- 受理日（W3CDTF）
- 2019-08-15T21:28:38+09:00
- 保存日（W3CDTF）
- 2019-08-15
- 記録形式（IMT）
- application/pdf
- オンライン閲覧公開範囲
- 国立国会図書館内限定公開
- デジタル化資料送信
- 図書館・個人送信対象外
- 遠隔複写可否（NDL）
- 可
- 掲載誌（国立国会図書館永続的識別子）
- info:ndljp/pid/11249488
- 連携機関・データベース
- 国立国会図書館 : 国立国会図書館デジタルコレクション
- 要約等
- The 2011 Tohoku-oki earthquake generated a large tsunami that caused catastrophic damage along the Pacific coast of Japan. The major portion of the damage along the Pacific coast of Tohoku in Japan was mainly caused by the first few cycles of tsunami waves. However, the largest phase of the tsunami arriving surprisingly late in Hakodate in Hokkaido, Japan; that is, approximately 9h after the origin time of the earthquake. It is important to understand the generation mechanism of this large later phase. The tsunami was numerically computed by solving both linear shallow water equations and non-linear shallow water equations with moving boundary conditions throughout the computational area. The later tsunami phases observed on southern Hokkaido can be much better explained by tsunami waveforms computed by solving the non-linear equations than by those computed by solving the linear equations. This suggests that the later tsunami waves arrived at the Hokkaido coast after propagating along the Pacific coast of the Tohoku region with repeated inundations far inland or reflecting from the coast of Tohoku after the inundation. The spectral analysis of the observed waveform at Hakodate tide gauge shows that the later tsunami that arrived between 7.5 and 9.5h after the earthquake mainly contains a period of 45-50min. The normal modes of Hakodate Bay were also computed to obtain the eigen periods, eigenfunctions, and spatial distribution of water heights. The computed tsunami height distributions near Hakodate and the fundamental mode of Hakodate Bay indicate that the large later phases are mainly caused by the resonance of the bay, which has a period of approximately 50min. The results also indicate that the tsunami wave heights near the Hakodate port area, the most populated area in Hakodate, are the largest in the bay because of the resonance of the fundamental mode of the bay. The results of this study suggest that large future tsunamis might excite the fundamental mode of Hakodate Bay and cause large later phases near the Hakodate port.
- DOI
- 10.1186/s40645-019-0278-x
- オンライン閲覧公開範囲
- インターネット公開
- 著作権情報
- Creative Commons Attribution 4.0 International
- 関連情報（URI）
- 参照
- Ultrabroadband Seismic and Tsunami Wave Observation of High‐Sampling Ocean‐Bottom Pressure Gauge Covering Periods From Seconds to HoursA methodology for appropriate withdrawal of tsunami warnings based on numerical simulationsStudy on the 1906 Colombia‐Ecuador Megathrust Earthquake Based on Tsunami Waveforms Observed at Tide Gauges: Release Variation of Accumulated Slip Deficits in the Source AreaTsunami Modeling for the Deep Sea and Inside Focal Areas日本海西部域における1833年庄内沖地震津波の広域沿岸挙動に関する研究
- 参照
- Source model of the great 2011 Tohoku earthquake estimated from tsunami waveforms and crustal deformation dataEffect of the Emperor seamounts on trans-oceanic propagation of the 2006 Kuril Island earthquake tsunamiSurges around the Hawaiian Islands from the 2011 Tohoku TsunamiA Self‐Consistent Fault Slip Model for the 2011 Tohoku Earthquake and TsunamiNationwide Post Event Survey and Analysis of the 2011 Tohoku Earthquake TsunamiKuril Islands tsunami of November 2006: 1. Impact at Crescent City by distant scatteringTime and Space Distribution of Coseismic Slip of the 2011 Tohoku Earthquake as Inferred from Tsunami Waveform DataDid a submarine landslide contribute to the 2011 Tohoku tsunami?Free oscillation of the Japan Sea excited by earthquakes--II. Modal approach and synthetic tsunamisThe Sumatra tsunami of 26 December 2004 as observed in the North Pacific and North Atlantic oceansKuril Islands tsunami of November 2006: 2. Impact at Crescent City by local enhancementThe 26 December 2004 Sumatra Tsunami: Analysis of Tide Gauge Data from the World Ocean Part 1. Indian Ocean and South AfricaObservations, Effects and Real Time Assessment of the March 11, 2011 Tohoku-oki Tsunami in New ZealandTsunami waveform analyses of the 2006 underthrust and 2007 outer-rise Kurile earthquakesTsunami generated by the 2004 Kushiro-oki earthquakeTsunami source of the 2011 off the Pacific coast of Tohoku Earthquake
- 連携機関・データベース
- 国立情報学研究所 : CiNii Research
- 提供元機関・データベース
- 学術機関リポジトリデータベース雑誌記事索引データベースCrossrefCiNii Articles科学研究費助成事業データベース科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossrefCrossref
- 書誌ID（NDLBibID）
- 11340129
- NII論文ID
- 120006729578