I have lived in the DC area for all my life (35 years) and have never been caught in an earth quake. I know you left coast folk are seasoned vets for that crap, but I am sure even you, deadhero, showed pause when you lived through your first one?
I got one for you though, when was the last time the left coast was hit by a Hurricane? Been a while I'm sure. I bet if the left coast got hit by a cat 1, or higher, hurricane now their reaction would be very similar to use east coasters and our "little" earthquake.