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2017 Fiscal Year Annual Research Report

Fusion of real-time simulation and remote sensing for tsunami damage estimation to Latin America

Research Project

Project/Area Number 16F16055
Research InstitutionTohoku University

Principal Investigator

越村 俊一  東北大学, 災害科学国際研究所, 教授 (50360847)

Co-Investigator(Kenkyū-buntansha) ADRIANO ORTEGA BRUNO  東北大学, 災害科学国際研究所, 外国人特別研究員
Project Period (FY) 2016-04-22 – 2018-03-31
Keywords津波 / 地震 / 被害把握 / 数値シミュレーション / リモートセンシング
Outline of Annual Research Achievements

近年に,南米および日本で発生した地震・津波災害の解析を行い,以下の成果を得た.

まず,2017年9月に発生したメキシコ中部地震(Mw8.2)による津波の解析を行い.沿岸・沖合の津波観測データの逆解析から,波源の推定を行った.その結果,断層破壊域は240km×90kmにおよび,最大の断層滑りは6mに及ぶことが明らかになった.この解析結果により,断層破壊の不均一性について,最も大きな破壊域(すべり量6m)は断層面のほぼ中央に位置し,次に大きな破壊域(すべり量5.5m)は北西端に位置することが判明した.これらの結果から,観測データをリアルタイムで解析して断層破壊メカニズムを明らかにすることで,特に我が国に来襲しうる津波の解析の高度化に有用であることが分かった.

次に,地震,津波,洪水等による都市域の被災状況を早期に把握するリモートセンシング技術の確立に向け,特に建物被害の量的把握を目的とした機械学習法の検討を行った.様々なセンサによる被害把握結果を早期に開示することで,災害対応における被害把握の迅速化・効率化,復旧過程における正確な被災マップの提供に向けたケーススタディを行った.具体的には,2017年に発生したメキシコ地震(Mw7.1)と2016年熊本地震の建物被害把握について,リモートセンシングデータを分析した.JAXAが観測したALOS-2 PALSAR-2画像を使用し,合成開口レーダーの後方散乱強度の解析から,建物被害状況を把握した.その結果,Lバンド合成開口レーダーを利用した場合,約70%の精度で建物被害地図を作成できることを実証した.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

  • Research Products

    (17 results)

All 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 5 results)

  • [Int'l Joint Research] National Autonomous University of Mexico(Mexico)

    • Country Name
      Mexico
    • Counterpart Institution
      National Autonomous University of Mexico
  • [Int'l Joint Research] National University of Engineering(Peru)

    • Country Name
      Peru
    • Counterpart Institution
      National University of Engineering
  • [Int'l Joint Research] Colombian Geological Service/Direccion General maritima, DIMAR(Colombia)

    • Country Name
      Colombia
    • Counterpart Institution
      Colombian Geological Service/Direccion General maritima, DIMAR
  • [Int'l Joint Research] Institute of Oceanography(Ecuador)

    • Country Name
      Ecuador
    • Counterpart Institution
      Institute of Oceanography
  • [Journal Article] Novel Unsupervised Classification of Collapsed Buildings Using Satellite Imagery, Hazard Scenarios and Fragility Functions2018

    • Author(s)
      Moya Luis, Marval Perez Luis, Mas Erick, Adriano Bruno, Koshimura Shunichi, Yamazaki Fumio
    • Journal Title

      Remote Sensing

      Volume: 10 Pages: -

    • DOI

      10.3390/rs10020296

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tsunami source and inundation features around Sendai Coast, Japan, due to the November 22, 2016 Mw 6.9 Fukushima earthquake2018

    • Author(s)
      Adriano Bruno, Fujii Yushiro, Koshimura Shunichi
    • Journal Title

      Geoscience Letters

      Volume: 5 Pages: -

    • DOI

      10.1186/s40562-017-0100-9

    • Peer Reviewed / Open Access
  • [Journal Article] A Framework of Rapid Regional Tsunami Damage Recognition from Post-event TerraSAR-X Imagery Using Deep Neural Networks2018

    • Author(s)
      Bai Yanbing, Gao Chan, Singh Sameer, Koch Magaly, Adriano Bruno, Mas Erick, Koshimura Shunichi
    • Journal Title

      IEEE Geoscience and Remote Sensing Letters

      Volume: 15 Pages: 43-47

    • DOI

      10.1109/LGRS.2017.2772349

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Analysis of Spatio-Temporal Tsunami Source Models for Reproducing Tsunami Inundation Features2017

    • Author(s)
      Adriano Bruno, Hayashi Satomi, Koshimura Shunichi
    • Journal Title

      Geoscience

      Volume: 8 Pages: -

    • DOI

      10.3390/geosciences8010003

    • Peer Reviewed / Open Access
  • [Journal Article] Building Damage Assessment in the 2015 Gorkha, Nepal, Earthquake Using Only Post-Event Dual Polarization Synthetic Aperture Radar Imagery2017

    • Author(s)
      Bai Yanbing, Adriano Bruno, Mas Erick, Koshimura Shunichi
    • Journal Title

      Earthquake Spectra

      Volume: 33 Pages: S185-S195

    • DOI

      10.1193/121516EQS232M

    • Peer Reviewed
  • [Journal Article] Tsunami Source Inversion Using Tide Gauge and DART Tsunami Waveforms of the 2017 Mw8.2 Mexico Earthquake2017

    • Author(s)
      Adriano Bruno, Fujii Yushiro, Koshimura Shunichi, Mas Erick, Ruiz-Angulo Angel, Estrada Miguel
    • Journal Title

      Pure and Applied Geophysics

      Volume: 175 Pages: 35-48

    • DOI

      10.1007/s00024-017-1760-2

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Machine Learning Based Building Damage Mapping from the ALOS-2/PALSAR-2 SAR Imagery: Case Study of 2016 Kumamoto Earthquake2017

    • Author(s)
      Bai Yanbing, Adriano Bruno, Mas Erick, Koshimura Shunichi
    • Journal Title

      Journal of Disaster Research

      Volume: 12 Pages: 646-655

    • DOI

      10.20965/jdr.2017.p0646

    • Peer Reviewed
  • [Presentation] Building damage mapping using change detection of ALOS-2 PALSAR-2 SAR images and strong motion data2017

    • Author(s)
      Luis Moya, Erick Mas, Bruno Adriano, Shunichi Koshimura, Fumio Yamazaki
    • Organizer
      International Remote Sensing Symposium 2017
    • Int'l Joint Research
  • [Presentation] Damage mapping of built-up area using full polarimetric PALSAR-2 images following the 2016 Pedernales Earthquake, Ecuador2017

    • Author(s)
      Bruno Adriano, Shunichi Koshimura, Miguel Estrada
    • Organizer
      International Remote Sensing Symposium 2017
    • Int'l Joint Research
  • [Presentation] Tsunami source of the Mw7 2016 Fukushima Earthquake inferred from tide gauge and GPU buoy records2017

    • Author(s)
      Bruno Adriano, Takashi Furuya, Erick Mas, Shunichi Koshimura
    • Organizer
      The Japan Geoscience Union and the American Geoscience Union Joint Meeting
    • Int'l Joint Research
  • [Presentation] Integrated Modelling of Disaster Damage and Relief Demand Estimation in Urban Areas2017

    • Author(s)
      rick Mas, Rubel Das, Luis Moya, Bruno Adriano, Luisa Urra, Shunichi Koshimura
    • Organizer
      The 15th International Conference on Computers in Urban Planning and Urban Management
    • Int'l Joint Research
  • [Presentation] Developing a rapid tsunami response system: Application to South America regions2017

    • Author(s)
      Bruno Adriano, Shunichi Koshimura
    • Organizer
      The International Association of Geodesy and International Association of Seismology and Physics of the Earth’s Interior Joint Conference
    • Int'l Joint Research
  • [Presentation] Tsunami source of the 1979 Tumaco Earthquake estimated from historical tide gauge records and geodetic data2017

    • Author(s)
      Bruno Adriano, Yushiro Fujii, Masahiro Yoshimoto, Shunichi Koshimura
    • Organizer
      The International Association of Geodesy and International Association of Seismology and Physics of the Earth’s Interior Joint Conference

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Published: 2018-12-17  

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