Earthquake

The video explains earthquakes as sudden ground shaking caused by tectonic plate movements. It details tectonic plates as pieces of Earth's crust that move along fault lines, sometimes causing earthquakes. The San Andreas fault is a notable example. Earthquakes can also occur near volcanoes. The Richter scale measures earthquake strength, with the strongest recorded in Chile in 1960 at 9.5. Annually, 500,000 earthquakes occur, but only a fraction are felt or cause damage.

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