The earliest scientists first observed the waves that earthquakes produce before they could accurately describe the nature of earthquakes or their fundamental causes, as discussed in Lessons 1–5.

An animation depicts how seismic waves will impact Los Angeles The Incredible Flying Car of the 1950s The Art of Sausage Making The Corning Museum of Glass Follow Us ...

An animation from the USGS shows a 7.8 magnitude earthquake on the San Andreas Fault in southern California National Treasure: The History of the Lie Detector A Rare Look at Tucker Cars Inside the ...