Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
ISSN-L : 1883-8944
Paper (In Japanese)
Numerical Simulation of the 2011 off the Pacific Coast of Tohoku Earthquake Tsunami in Hachinohe Port
Takashi TOMITATatsuya MIWA
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2013 Volume 69 Issue 2 Pages I_236-I_240

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Abstract

The tsunami generated by the 2011 off the Pacific coast of Tohoku earthquake inundated coastal flat areas, moved auto vehicles, boats and ships and destroyed part of a breakwater in Hachinohe Port. In this paper, propagation and inundation calculations of the tsunami are implemented from an estimated tsunami source. Consideration of the breakwater damage in the calculations provides a good result of the tsunami in the port in comparison with the waveform observed at a tide station in the port, the measured inundation border and heights of tsunami watermarks. Based on the time of breakwater destructions in the calculation, failure mechanisms of the breakwater damage are estimated. Further, movement of a ship in the port is calculated and compared with a result of video footage analysis.

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© 2013 by Japan Society of Civil Engineers
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