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Tsunamis travel very fast
across the open sea, maybe five hundred miles an hour, with hardly
a ripple. However, as the land rises, dramatically slowing down
the waveform, and the beach gets shallower, all that energy has
to go somewhere! It goes straight up, sometimes sixty feet into
the air, sucking up water from both sides. A tsunami could happen
in the middle of the night. If you feel an earthquake, or hear an
ocean's roar, get inside a boat, car, or bathtub. If it's daytime,
go up a tree, or somewhere sturdy and high, like Swiss Family Robinson.
After the wave goes by, it's not the water that gets you. It's the
debris. The same is true of tornados.
You generally won't get any warning, because the people who know
it's coming don't know the telephone number of the BBC.
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