Tsunamis can travel far because they start in deep water and move very fast. Imagine a big stone being dropped into a calm lake, the ripple moves out, getting smaller as it goes. In the ocean, tsunamis are like that ripple, but much bigger and faster. When they reach shallow water near the shore, they grow taller and hit with more force.
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See also
- What Causes a ‘Tsunami’ and How Is It Different from a ‘Wave’?
- What Causes the ‘Sound’ of a Breaking Wave?
- What Causes a Tsunami to Form?
- What Causes the ‘Waves’ in the Ocean and How Are They Measured?
- What Causes the ‘Waves’ in the Ocean and How Are They Different From Tsunamis?
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