Fig. 1From: Measuring offshore tsunami currents using ship navigation recordsa Tsunami source as sea-surface elevation due to the 2011 Tohoku tsunami (Saito et al. 2011). b Simulated maximum tsunami height with its arrival time (contours in minutes). c Simulated maximum tsunami current velocity with its arrival time (contours in minutes). The tsunami simulation is based on non-linear long-wave equations (Saito et al. 2014)Back to article page