definisi tsunami menggunakan bahasa inggris

"Tsunami" is the movement of water bodies caused by sudden change of sea surface. Sea-level changes can be caused by earthquakes centered under the sea, submarine volcanic eruptions, submarine landslides, or meteor hits at sea. Tsunami waves can propagate in all directions. The power contained in the tsunami wave is fixed to its altitude and speed function. In the deep ocean, tsunami waves can travel at speeds of 500-1000 km per hour. Equal to airplane's speed. Deep-sea wave height is only about 1 meter. Thus, the wave rate is not felt by the ship that was in the middle of the sea. When approaching the coast, the speed of tsunami waves decreases to about 30 km per hour, but its height has increased to reach tens of meters. The waves of the Tsunami can enter up to tens of kilometers from the shore. The damage and casualties caused by the Tsunami can be caused by water or material hits carried by the tsunami waves.

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