Physical Geography: Earthquakes and How They Are Measured (2009)

This fascinating video goes behind the scenes with seismologists at the National Earthquake Center in Colorado to school viewers about the causes of temblors, methods of triangulating their epicenters, the Mercalli and Richter scales and more. You'll learn why certain areas are more prone to shakers than others and watch as scientists spring into action to record and analyze data from a real earthquake.