Ø Tsunami velocity is dependent on the depth of water
       through which it travels [Velocity = sqrt (g*depth)].
Ø Tsunamis travel approximately 713 kmph in 4km of water
    depth. In 10m  of water depth, the velocity drops to about
    36kmph.
Department of Ocean Engineering, IIT Madras, Chennai , India – 600 036
HOW FAST DOES A TSUNAMI TRAVEL?