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Effects of the Offshore Barrier Against the 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami and Lessons Learned

Part of the Advances in Natural and Technological Hazards Research book series (NTHR,volume 44)

Abstract

In this study, the effectiveness of an offshore breakwater for the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami was examined by two-dimensional (2D), quasi three-dimensional (quasi-3D) and three-dimensional (3D) numerical models. First, both 3D numerical models were applied to the behavior of tsunami inundation for Kamaishi Bay in Iwate Prefecture where an offshore deep-water breakwater was installed against an assumed tsunami before 2011. The numerical results indicate 20 % error of maximum inundation height compared with the post-event tsunami survey on the land. It is found that the offshore breakwater significantly reduced the tsunami height on the land. The reduction of tsunami height on the land gave about 30 % tax revenue in comparison with similar locations with or without breakwater. Based on the results the construction and or rebuilding of damaged offshore breakwaters can be considered as a viable option against tsunami particularly in vulnerable areas.

Keywords

  • Tsunami height
  • Offshore breakwater
  • Numerical modeling
  • Economic recovery

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References

  • Goto C, Ogawa Y, Shuto N, Imamura F (1997) IUGG/IOC time project: IOC manuals and guides no 35 – Numerical method of tsunami simulation with the leap-frog scheme

    Google Scholar 

  • Kawai H, Satoh M, Kawaguchi K, Seki K (2011) Characteristics of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami. Report of Port and Airport Research Institute 50(4):1–64

    Google Scholar 

  • Mori N, Takahashi T, Yasuda T, Yanagisawa H (2011) Survey of 2011 Tohoku earthquake tsunami inundation and run-up. Geophys Res Lett. doi:10.1029/2011GL049210

  • Mori N, Takahashi T, The 2011 Tohoku Earthquake Tsunami Joint Survey Group (2012) Nationwide post event survey and analysis of the 2011 Tohoku Earthquake Tsunami. Coastal Eng J 54(1), 1250001, 27 p

    Google Scholar 

  • Mori N, Cox DT, Yasuda T, Mase H (2013) Overview of the 2011 Tohoku Earthquake Tsunami damage and relation with coastal protection along the Sanriku coast, Earthquake Spectra, March 2013, 29(S1):S127–S143

    Google Scholar 

  • National Police Agency (2014) Damage situation and police countermeasures, http://www.npa.go.jp/archive/keibi/biki/higaijokyo.pdf. Accessed Jan 2014

  • Pringle W, Yoneyama N (2013) The application of a hybrid 2D/3D numerical tsunami inundation-propagation flow model to the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami. J Jpn Soc Civil Eng Ser B2 (Coastal Eng) 69(2):I_306–I_310 (in Japanese)

    Google Scholar 

  • Tanimoto K, Goda Y (1991) Stability of deep water caisson breakwater against random waves, Coastal Structures and Breakwaters, Institution of Civil Engineers (GB), Thomas Telford, London, pp 221–231

    Google Scholar 

  • The 2011 Tohoku Earthquake Tsunami Joint Survey (TTJS) Group (2011) Nationwide field survey of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami. J Jpn Soc Civil Eng Ser B 67(1):63–66

    Google Scholar 

  • The Headquarters for Earthquake Research Promotion (2005) National seismic hazard maps for Japan, 158 p

    Google Scholar 

  • Yoneyama N, Mori N, Miwa M (2012) Numerical analysis of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami in Kamaishi Bay . J Jpn Soc Civil Eng, 5 p (in press) (in Japanese)

    Google Scholar 

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Acknowledgements

We gratefully acknowledge efforts on the survey results of the 2011 Tohoku Earthquake Tsunami Joint Survey (TTJS) group. This study is dedicated to all who have been affected by the earthquake in Japan on March 11, 2011.

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Correspondence to Nobuhito Mori .

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Mori, N., Yoneyama, N., Pringle, W. (2015). Effects of the Offshore Barrier Against the 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami and Lessons Learned. In: Santiago-Fandiño, V., Kontar, Y., Kaneda, Y. (eds) Post-Tsunami Hazard. Advances in Natural and Technological Hazards Research, vol 44. Springer, Cham. https://doi.org/10.1007/978-3-319-10202-3_9

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