Plate Tectonics Websites
The United States Geological Survey (USGS)
Up-to-date information about tectonic hazards and events. Excellent case-study material, and maps showing you the latest eruptions, ground movements and tsunamis.
The Bristish Geological Survey (BGS)
Some information about tectonics, but not as good as the USGS.
National Geographic - Make your own earthquake!
Pretty pictures (of course), good case-study help, and a chance to create your own earthquake!
The Earthquake Locator
Find out where the latest earthquakes have been using this simple GIS website.