Discover interesting facts about how big earthquakes can get, why earthquakes happen, and why they're so hard to predict.

The Earth's plates jostle about in fits and starts that are punctuated with earthquakes and volcanic ... creates three types of tectonic boundaries: convergent, where plates move into one another ...

For more on divergent boundary, go to The Sea Floor Spread. Also known as subduction boundary, a convergent boundary ... This movement is felt as an earthquake. For more information, go to Slippin ...