Case study of tsunami evaluation triggered by offshore submarine landslide

It is required to establish a consistent evaluation scheme regarding the estimation of tsunami height caused by the submarine landslide, since the standard framework for evaluation has not yet been established although several calculation models have been proposed and practically applied. In this study, we proposed the case of evaluating tsunami height triggered by the submarine landslide with multiple calculation models by setting the detailed profile of the submarine landslide based on the results of literature survey and re-analysis of marine acoustic wave exploration records. As a result of the comparison of the tsunami height evaluation by each calculation model, it was suggested that the safe-side evaluation result will be possibly obtained compared with the experimental result and other methods, in the case of applying the 'kinematic landslide model'. (author)