DAMAGE ALONG COASTS IN SENDAI BAY CAUSED BY THE 2011 GREAT TSUNAMI
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Keywords

2011 Great Tsunami
tsunami damage
trench formation
coastal dike
coastal forest

How to Cite

Sakai, K., Uda, T., San-nami, T., & Shimizu, T. (2012). DAMAGE ALONG COASTS IN SENDAI BAY CAUSED BY THE 2011 GREAT TSUNAMI. Coastal Engineering Proceedings, 1(33), currents.13. https://doi.org/10.9753/icce.v33.currents.13

Abstract

A great earthquake with a magnitude of 9.0 occurred on March 11, 2011, with an epicenter 130 km offshore of the Oshika Peninsula in Miyagi Prefecture. After the earthquake, a giant tsunami inundated a large area along Japan's eastern coastline. We carried out field observations to investigate the damage to Arahama Town and the formation of a trench as a result of local scouring by the jet flow over the coastal dike. Here, the results of the field observations on the inundation of the tsunami into a wide residential area on Shobuta Beach and in Arahama Town were reported. Then, the destruction of the coastal dike, as well as the formation of a large trench immediately behind the coastal dike due to the tsunami overflow on the Yamamoto coast, was investigated, where the tsunami height reached up to 19.2 m above mean sea level (MSL), estimated from the run-up height on the slope of a hill.
https://doi.org/10.9753/icce.v33.currents.13
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References

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