Why Are Earthquakes Produced

Summary Note

What causes earthquakes? Learn the characteristics, secondary effects, and definition of earthquakes. Topics include: The Richter Scale, Tectonic Plates, Alfred Wegener, and more!

General Note

Originally released by Cerebellum Corporation, 2013.
Streaming video file encoded with permission for digital streaming by Infobase on July 10, 2018.

Content Note

Earthquake Introduction (1:14); --Earthquakes (3:12); -- Tectonic Plates (3:36); -- Seismic Zones (2:09); -- Summary (2:09); -- Credits: Why Are Earthquakes Produced? (0:40);.