2018 Volume 74 Issue 2 Pages I_205-I_210
Characteristics of tsunami oscillation in Tokyo, Sagami and Suruga Bays were investigated regarding the estimated Nankai-Trough megathrust earthquake models. In the cases where there is a large fault slip in the Nankai area, the oscillation of 76 minutes period was commonly excited in the three bays. In the cases with a large slip area in the Tokai or Tonankai area, the 68-minute component was excited only in Suruga and Tokyo Bays. The tsunami tended to be prolonged in the three-bay oscillation mode. The tsunami in the Keihin Canal in Tokyo Bay tended to be strengthened when the oscillation of the entire Tokyo bay include the components that are close to the characteristic period of the canal (30 min). In considering the continuity or amplification of tsunamis of canals in Tokyo bay, it is useful to focus on the macro-scale tsunami oscillation mode among the three neighboring bays.
PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF THE JAPANESE CONFERENCE ON COASTAL ENGINEERING
