Estimation of runup heights of the 2011 Tokohu tsunami based on 3D numerical simulations and 1D analytical runup theory

Abstract

A gigantic earthquake (M9.0) occurred at 14h46m (JST) 11th, March 2011 in the Pacific Ocean east off the Tohokudistrict north east part of the Honshu Island, Japan. It was accompanied by the huge tsunami. Measuredrunup heights of this tsunami are collected in several web sites and papers. In this study, we compare observedand computed runup heights. Numerical computations are performed in the framework of the 3D hydrodynamicequations matched with 1D theory of long wave runup near shoreline.is tsunami are collected in several web sites and papers. In this study, we compare observedand computed runup heights. Numerical computations are performed in the framework of the 3D hydrodynamicequations matched with 1D theory of long wave runup near shoreline.