Shake, Rattle and Roll!
Seriously, though, out here in the earthquake-prone west coast, the 'experts' say that small quakes can release pressure and stress near the fault lines, helping to prevent events of larger and more damaging magnitude.
I doubt that any place in the U.S. (or even the world) is free of faults, and the earth is moving all the time. We get a lot of shakes that no one even feels. But when you're not used to them, I know it just makes you worry more when you know about them. When I've been in Tornado Alley, just the idea of a tornado gave me the creeps.
Most of your preparations for more likely disasters will cover you in the (remote) chance of an earthquake.
Hey, would you be interested in a couple of volcanos to go along with your fault line? I'll let you have them cheap, but you'll have to pick them up. <img src="/images/graemlins/grin.gif" alt="" />
Interesting U.S. Geological Survey info on earthquakes, by state:
http://earthquake.usgs.gov/regional/states.phpSue