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A tsunami occurs when there is an under-water earthquake.

The two oceanic plates crash into each other and since both of the plates have jagged edges, the edges fit into the other oceanic plate like jigsaw pieces.

This will increase the pressure between both plates and predominantly one of the plates will dominate the other causing massive waves.

In the water, massive waves are considered as ''Tsunamis'' since it is an underwater earthquake.

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13y ago

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