The Tsunami Behavior of the 2011 off the Pacific Coast of Tohoku Earthquake in the Shikoku Coast

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  • 四国沿岸で観測された2011年東北地方太平洋沖地震の津波挙動
  • シコク エンガン デ カンソク サレタ 2011ネン トウホク チホウ タイヘイヨウオキ ジシン ノ ツナミ キョドウ

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Abstract

We examined tsunami behavior of the 2011 off the Pacific coast of Tohoku Earthquake in the Shikoku coast by conducting field survey and data analysis of tide gauges installed in harbors and river mouths. In Tachibana Bay and Susaki Bay those are both V-shaped, the highest sea level by the tsunami has reached more than 3m. As a result, the floor flooded damage and extensive fishing damage were occurred in several districts. In Tachibana Bay, the tsunami was amplified to approximately 2.5 times the height at the bay mouth.

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