Solved cryptogram
A tsunami crosses deep water as a low swell, and only piles up into a wall near the shore.
Earth Science Facts, sourced to NOAA.
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What it means
In the open ocean a tsunami may be less than a meter high, with a wavelength of hundreds of kilometers, and a ship over it would feel nothing at all. It moves at something like the speed of a jet aircraft. As the water shoals near a coast the front slows, the back catches up, and all that energy is forced into a shorter, taller form. The height at the shore is where the danger appears.
The claim comes from NOAA.
- SourceNOAA
- CollectionEarth Science Facts
- Difficultyeasy
- Length70 letters, 17 unique
Nearby in the collection
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