2020 Volume 76 Issue 2 Pages I_331-I_336
The 2004 Sumatra Earthquake Tsunami caused tsunami damage to many countries along the Indian Ocean coast. In this study, we carried out numerical simulations using the trace of tsunami height recorded over the wide area, examined the tsunami source model and the effect of fault rupture propagation characteristics on the coastal tsunami height. In the area near the tsunami source, the geometric deviation of ratios of observed values to calculated values was almost unchanged, in the case of the fault rupture propagation velocity was changed. In the distant region, the geometric deviation was small only for relatively slow fault rupture propagation velocity. Therefore, it is important to consider appropriate fault rupture propagation characteristics in tsunami simulations for accurate reproduction and prediction of tsunami heights over the wide area of the mega tsunami.
PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING
