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Tectonic plates move as fast as fingernails grow
Earth's tectonic plates move at roughly the same rate that your fingernails grow.
Why it is true
Each plate moves at its own speed and in its own direction. Scientists track the motion with GPS that measures within a fraction of a millimeter per year.
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We keep the original reference beside the claim so you can inspect the evidence and surrounding context yourself.
Open U.S. Geological Survey
