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Applicability of machine learning to tsunami source estimation for exploring devastated area

Research Project

Project/Area Number 17H03316
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Hydraulic engineering
Research InstitutionKansai University

Principal Investigator

Takahashi Tomoyuki  関西大学, 社会安全学部, 教授 (40261599)

Co-Investigator(Kenkyū-buntansha) 奥村 与志弘  関西大学, 社会安全学部, 准教授 (80514124)
河野 和宏  関西大学, 社会安全学部, 准教授 (60581238)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2017: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywords機械学習 / ニューラルネットワーク / 津波波源断層モデル / 津波シミュレーション / 津波観測 / 津波被害 / 波源断層モデル / 南海トラフ巨大地震津波 / 深層学習 / 転移学習 / 多数津波シナリオ / 津波数値モデル / 津波伝播シミュレーション / 津波浸水シミュレーション / 建物被害 / Convolutional LSTM / 津波 / 人工知能 / 自然災害 / 防災
Outline of Final Research Achievements

For effective disaster management, prompt and accurate tsunami source estimation is important not only for updating tsunami warnings but also for determining emergency responses. Although tsunami waveform inversion is a powerful tool for estimating tsunami sources, expert analysis of a large amount of data by trial-and-error methods is needed. Machine learning is an effective means of extracting features from complex big data and determining underlying laws related to different phenomena. In the study, a model to estimate tsunami source from observed data by using machine learning was developed.
Using the deep learning algorithm, a neural network model was constructed. The training data were based on a dataset generated using the fault models and the virtually observed water level changes. The trained model was validated by examining whether it could determine the tsunami source parameters for the different scenarios from the virtually observed data.

Academic Significance and Societal Importance of the Research Achievements

巨大津波災害においては、様々な物理的・人的要因が複雑に影響しあって被害を拡大させる。よって、大量の複雑な情報を分析する必要があり、人工知能の活用が期待される分野であるが、現状ではほとんど導入されていない。本研究は津波研究の中心となる津波波源に対して機械学習の適用を試みたものであり、その学術的意義は高いと考えられる。
また、津波波源は津波警報やハザードマップなどの津波防災技術の基礎になるものである。よって、津波波源を機械学習により迅速に調べることができるようになれば、津波防災実務への貢献も期待される。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (24 results)

All 2019 2018 2017

All Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 8 results) Presentation (13 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] NUMERICAL EXPERIMENT FOR FAULT PARAMETER ESTIMATES BY THE CHANGING POINT OF TSUNAMI SAND DEPOSIT DISTRIBUTION2019

    • Author(s)
      YAMAMOTO Ako、TAKAHASHI Tomoyuki、HARADA Kenji
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 75 Issue: 2 Pages: I_361-I_366

    • DOI

      10.2208/kaigan.75.I_361

    • NAID

      130007730208

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] POTENTIAL IMPACT OF TSUNAMI-INDUCED SEDIMENT TRANSPORT IN KOCHI PREFECTURE CAUSED BY THE NANKAI TROUGH MEGATHRUST EARTHQUAKE2019

    • Author(s)
      2.山下 啓・菅原大助・門廻充侍・有川太郎・高橋智幸・今村文彦
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 75 Issue: 2 Pages: I_685-I_690

    • DOI

      10.2208/kaigan.75.I_685

    • NAID

      130007730341

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] RELATIONSHIP BETWEEN BUILDING DISTRIBUTION AND TSUNAMI OVERTURNING MOMENT2019

    • Author(s)
      奥村 与志弘, 坂東 直樹, 四方 寿, 米山 望, 清野 純史
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 75 Issue: 2 Pages: I_871-I_876

    • DOI

      10.2208/kaigan.75.I_871

    • NAID

      130007730329

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical Analysis of Liquefaction of Sandy Ground Induced by Tsunami2019

    • Author(s)
      Yoshihiro Okumura, Ryosuke Kato, Fusao Oka
    • Journal Title

      Proceedings of the Twenty- ninth International Ocean and Polar Engineering Conference

      Volume: CD-ROM Pages: 3218-3225

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coastal Subsidence Induced Several Tsunamis During the 2018 Sulawesi Earthquake2018

    • Author(s)
      Arikawa Taro、Muhari Abdul、Okumura Yoshihiro、Dohi Yuji、Afriyanto Bagus、Sujatmiko Karina Aprilia、Imamura Fumihiko
    • Journal Title

      Journal of Disaster Research

      Volume: 13 Issue: 0 Pages: n/a

    • DOI

      10.20965/jdr.2018.sc20181204

    • ISSN
      1881-2473, 1883-8030
    • Year and Date
      2018-12-04
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Real-Time Tsunami Detection with Oceanographic Radar Based on Virtual Tsunami Observation Experiments2018

    • Author(s)
      Ogata Kohei、Seto Shuji、Fuji Ryotaro、Takahashi Tomoyuki、Hinata Hirofumi
    • Journal Title

      Remote Sensing

      Volume: 10 Issue: 7 Pages: 1126-1126

    • DOI

      10.3390/rs10071126

    • NAID

      120006524724

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] DEVELOPMENT OF TSUNAMI SOURCE ESTIMATION DATABASE BASED ON TSUNAMI DEPOSITS2018

    • Author(s)
      TAKAHASHI Tomoyuki、KAWASAKI Koji、HIRATA Kenji
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 74 Issue: 2 Pages: I_541-I_546

    • DOI

      10.2208/kaigan.74.I_541

    • NAID

      130007504003

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ESTIMATION OF THE GROUND CHARACTERISTICS IN ONAGAWA TOWN DURING THE 2011 TOHOKU EARTHQUAKE AND TSUNAMI CONSIDERING THE DAMAGE OF THE PILE-SUPPORTED RC BUILDING2018

    • Author(s)
      佐藤裕子,奥村与志弘,米山望,渡辺健,清野純史
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 74 Issue: 4 Pages: I_777-I_787

    • DOI

      10.2208/jscejseee.74.I_777

    • ISSN
      2185-4653
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 時空間の連続性を考慮した映像改ざん検出2018

    • Author(s)
      吉田崇晃,河野和宏,馬場口登
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: 117, 476 Pages: 23-28

    • Related Report
      2017 Annual Research Report
  • [Journal Article] ESTIMATION OF THE CHARACTERIZED TSUNAMI SOURCE MODEL BY USING GPS BUOYS AND ITS APPLICATION2017

    • Author(s)
      門廻充侍,高橋智幸
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 73 Issue: 2 Pages: I_307-I_312

    • DOI

      10.2208/kaigan.73.I_307

    • NAID

      130006171796

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EFFECTS OF SURROUNDING BUILDINGS ON THE OVERTURNING OF RC BUILDING DUE TO THE 2011 GREAT EAST JAPAN TSUNAMI2017

    • Author(s)
      奥村 与志弘, 坂東 直樹, 米山 望, 清野 純史
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

      Volume: 73 Issue: 2 Pages: I_913-I_918

    • DOI

      10.2208/kaigan.73.I_913

    • NAID

      130006171870

    • ISSN
      1883-8944, 1884-2399
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Feasible Study for Predicting Tsunami Height by Using Oceanographic Radar Installed in Wakayama Prefecture2019

    • Author(s)
      Shuji SETO, Tomoyuki TAKAHASHI, Hirofumi HINATA, Ryotaro FUJI and Fumihiko IMAMURA
    • Organizer
      Asia Oceania Geosciences Society 16th Annual Meeting
    • Related Report
      2019 Annual Research Report
  • [Presentation] Numerical Experiment of Tsunami Sand Deposits Affected by Fault Conditions in a Simple Topography2019

    • Author(s)
      Ako Yamamoto, Tomoyuki Takahashi and Kenji Harada
    • Organizer
      International Union of Geodesy and Geophysics 27th General Assembly
    • Related Report
      2019 Annual Research Report
  • [Presentation] 敵対的生成ネットワークを用いた映像改ざん検出2019

    • Author(s)
      大城将健,河野和宏,馬場口登
    • Organizer
      電子情報通信学会技術研究報告
    • Related Report
      2019 Annual Research Report
  • [Presentation] 映像改ざん検出における時空間特徴量の検証2019

    • Author(s)
      大城将健,河野和宏,馬場口登
    • Organizer
      電子情報通信学会技術研究報告
    • Related Report
      2019 Annual Research Report
  • [Presentation] 規範的影響による同調行動を考慮した違法コンテンツの利用抑制の検討2019

    • Author(s)
      山口央貴,河野和宏
    • Organizer
      電子情報通信学会技術研究報告
    • Related Report
      2019 Annual Research Report
  • [Presentation] 映像改ざん検出における時空間特徴量の検証2019

    • Author(s)
      大城将健,河野和宏,馬場口登
    • Organizer
      電子情報通信学会EMM研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Feasibility Study on Tsunami Source Estimation from Observed Water Level Change by Machine Learning2018

    • Author(s)
      Tomoyuki Takahashi
    • Organizer
      15th Annual Meeting AOGS
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] FUNDAMENTAL STUDY ON INFLUENCE OF TSUNAMI SOURCE HETEROGENEITY ON TSUNAMI HEIGHT DISTRIBUTION ALONG A COAST2018

    • Author(s)
      Tomoyuki Takahashi
    • Organizer
      European Seismological Commission 36th General Assembly
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 時系列情報を持つ畳み込みニューラルネットワークを用いた映像改ざん検出2018

    • Author(s)
      大城将健,河野和宏,馬場口登
    • Organizer
      電子情報通信学会EMM研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Passive Video Forgery Detection Considering Spatio-Temporal Consistency2018

    • Author(s)
      K. Kono, T. Yoshida, S. Ohshiro, and N. Babaguchi
    • Organizer
      14th International Conference on Information Assurance and Security
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 有効応力解析を用いた2011年東北地震津波による女川町の地盤応答特製の推定2017

    • Author(s)
      奥村与志弘,家根拓矢,加藤亮輔,清野純史
    • Organizer
      第37回地震工学研究発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 杭基礎建物の被災状況を踏まえた2011年東北地震津波による女川町の地盤応答特性の推定2017

    • Author(s)
      佐藤祐子,奥村与志弘,米山望,清野純史
    • Organizer
      第37回地震工学研究発表会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 杭基礎RC建物の津波による転倒に及ぼす周辺建物群の影響2017

    • Author(s)
      坂東直樹,奥村与志弘,清野純史
    • Organizer
      平成29年度土木学会全国大会第72回年次学術講演会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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