The tsunami caused by the vibration of the Earth's crust is made up of several tectonic plates. Plate connected When the plates move toward each other. Or separated by an earthquake would cause a severe vibration of the crust is very little different each time. Where the boundaries of tectonic plates, so often earthquakes occur frequently. Especially In the area at the edge of the slide plates submerged under the edges of the plates to another disc. Will cause severe earthquakes beneath the seas and oceans, which release enormous energy output. Make the water in the ocean Of moving into a larger amplitude. Spread over a large area away from the center. The earthquake
caused a tsunami, although most have been caused by a severe earthquake under the ocean. But if there are other reasons that caused huge waves in the sea, and not from the action of the wind storm. It is a tsunami as well.