but also to the distance between them, undoubtedly implies that the impact of a tsunami that
reaches the coast can be controlled with such barriers. Bearing this in mind, in the last
series of experiments, we explored the strength with which a tsunami hits an obstacle
placed on the coast. Instead of near-bottom barriers fully intercepting the channel, we used
small concrete tiles (7 cm in width and height and 0.8 cm thick). The tiles fell if two …