Just to be clear, a megatsunami is not usually caused by earthquakes, but rather other events and are very rare. Normal tsunami: https://secure.wikimedia.org/w

Just to be clear, a megatsunami is not usually caused by earthquakes, but rather other events and are very rare. Normal tsunami: https://secure.wikimedia.org/wikipedia/en/wiki/Tsunami https://secure.wikimedia.org/wikipedia/en/wiki/Tsunami