抄録
On July 12, 1993 an earthquake occurred off the southwestem coast of Hokkaido and generated a giant tsunami.
Just after the earthquake, Harvard University obtained a model of a fault plane, estimated from the seismic wave analysis. However, this model can not explain well the corresponding tsunami.
On taking the measured tsunami runup distribution into consideration, the authors arrived at a solution, DCRC-17a, which consists of three fault planes. The DCRC-17a explains very well runups as well as the measured ground subsidence in Okushiri Island.
Both of the computed results for the Harvard solution and DCRC-17a are compared in a CG animation, which shows well the dynamic movement and the generation of complicated patterns at and around of Okushiri Island and between Okushiri Island and Hokkaido.
