Fig. 1

Distributions of maximum tsunami heights and tsunami travel times of the 1854 CE a Ansei–Tokai and b Ansei–Nankai earthquakes. CD01 and CD02 are the computational domains of 54 and 18 s in grid intervals, respectively. The contour interval is 1 h. The earthquake epicenters are shown by yellow stars, and the locations of the North American tide gauge stations are shown by red squares