Would it be possible to use nuclear explosions in order to reduce the amplitude of a tsunami wave? This refers to tsunamis caused both by earthquakes and asteroid impact. Imagine a 100-500 meter asteroid falls into an ocean and produces a tsunami. In this case the tsunami can be anticipated well if the asteroid is seen say 1 day before the impact. Could one use nukes to reduce its effects on coastal regions? Where would the best hits be applied: directly on the tsunami to locally dissipate its energy, or farther away and then count on wave interference to reduce the main wave?