What Causes a Tsunami?

Tsunami’s are huge scary waves, but they
don’t exactly work like waves. A normal wave is caused by gravity, wind, and a whole
bunch of other factors but the principal is basically the same with energy being transferred
across the top of the water to form a wave. Tsunamis are usually formed by energy transferred
from an earthquake at the bottom of the ocean. These explosions of energy cause water to
rush away from the earthquake’s epicenter at shockingly fast speeds. A 2004 tsunami
was clocked at 300 miles per hour. Despite that, most tsunamis are not noticeable
until they enter shallower water near shore. Then the energy gets compressed and the wave
slows down to around 30 miles an hour, but it also grows in height to around 100 feet.
This is when all the horrible disaster movie stuff happens. The water level rises drastically
and tsunamis barrage the land for five to 90 minutes before heading back out to sea.
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