What are the correlations between tectonic plates and earthquakes?
When plates collide or slide apart, earthquakes can be caused.
"There's really only one explanation for all of the questions about tectonic plates popping up... Why not just do your own homework? It would work a lot faster than waiting for some other random person to do it for you. Alas, (wow I just said "alas") I still answered the question for you..." - anh1227
The entire crust of the earth is tectonic plates! Perhaps you meant "Why most earthquakes occur near the boundaries of tectonic plates?". This is because the tectonic plates move relative to each other at their boundaries, this relative movement causes many of the earthquakes that occur. In the centers of tectonic plates there is little relative movement and thus fewer earthquakes.