Место издания:Tokyo Institute of Technology, Japan
Первая страница:1979
Последняя страница:1985
Аннотация:On the base of slip distribution data (USGS, UCSB, and Caltech) for the 2011 Tohoku earthquake, the vector fields of co-seismic bottom deformation were calculated. For reconstruction of the initial elevation of the water surface in the tsunami source from bottom deformation and bathymetry data 3D model was employed. Within the framework of the linear shallow water theory numerical simulation of tsunami propagation was carried out. The simulation results were compared to the signals recorded by a number of DART stations closest to the tsunami source. It was shown that USGS fault model provides the most precise coincidence between synthetic and observed sea level changes. Insignificant differences in arrival times of the synthetic and in-situ recorded signals were interpreted as manifestation of phase dispersion and finite duration of bottom deformation.