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799

With our move to Utah, we are a very long way from the ocean, but we still have tides. How?

Answer:

Just as the gravitational pull of the Moon and the Sun cause tides in the ocean, they also cause tides in the Earth itself. The ground under your feet can rise and fall as much as 300 mm every day. Because the entire surface of the Earth bulges, it takes very specialized equipment to measure earth tides. Recent studies suggest that earth tides can play a role in triggering earthquakes.
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