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Destruction Decoded S1 Ep4: EarthquakesEarthquakes occur when tectonic plates suddenly shift and shock waves shake the Earth's surface; they occur along fault lines -- the most active being the Ring of Fire in the Pacific Ocean and the San Andreas Fault on the American West Coast.

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Destruction Decoded S1 Ep4: EarthquakesEarthquakes occur when tectonic plates suddenly shift and shock waves shake the Earth's surface; they occur along fault lines -- the most active being the Ring of Fire in the Pacific Ocean and the San Andreas Fault on the American West Coast.0Facing Forces of Nature S1 Ep1: AsteroidsAn asteroid could be barreling toward Earth at any time, now or in the future; only science can save us.

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