What is plate tectonics?

Plate tectonics is a framework for understanding many geophysical observations, including the distribution of seismicity. These resources provide insight into the theory of plate tectonics and how it is used in research today. The USGS online publication "Earthquakes" is a nice, general introduction which includes information on the hows and whys of earthquakes.

• Earthquakes and Plate Tectonics? - from the USGS, NEIC

• This Dynamic Earth: the Story of Plate Tectonics - from the USGS

• Earthquakes - from the USGS

• Where do earthquakes occur? Why? - from the USGS

• An Introduction to Plate Tectonics from the St. Louis University

• Plate Tectonics The Cause of Earthquakes - from the University of Nevada, Reno

• Plates of the World - from the University of Arizona

• Continents on the Move from Nova