How does the tsunami form as it approaches land?

Answer 1

A tsunami is formed when an earthquake happens from tectonic plates are shifting underwater. These ripples happen and travel to land. If you imagine a slinkey when you push on one side of it, it moves because sections hit eachother and cause the attached sections to move in the same direction. As the tsunami comes up to land, it's area decreases because of the rising level of the sea floor, pushing water above the sealevel, causing a giant wave.

Answer 2

As a tsunami approaches land, its leading edge slows down due to the shallowing of the ocean floor near the coast. This causes the tsunami to compress and its height to increase significantly. When the wave enters shallow coastal waters, it can become a powerful wall of water that inundates the land.

Answer 3

tsunami forms by under water earthquake,under water volcanic eruptions and under water landsliding rally it could be caused by a meteoroid impact.

Answer 4

it shakes the ocean back and fourth and when the shaking stops the ocean has lots of waves and a lot of times one or two of those waves are big enough to make tsunamis.