Yet going by the news reports everyone seemed unnerved by this earthquake (maybe they only showed us the nervous responses to help boost Californian moral) .
As has been said, it's really, really rare to have an earthquake out here that not only can be felt, but actually sways buildings and causes damage, however minor*.
They're not unknown, and the possibility is pretty much all along the coast, from New York to Charleston SC. BUT, an earthquake is way down the list of natural disasters we can expect.
As Ahn mentioned, we do get tornadoes, as well as hurricanes and blizzards. But we haven't had a hurricane hit the east coast in almost a decade, and again, as Ahn mentioned, they tend to deflect out into the Atlantic or have weakened tremendously by the time they do hit. And tornadoes, despite looking scary, really don't do that much damage overall. Sure, if you're in the direct path it's going to suck, but if you're not, it doesn't do anything other than look scary and maybe fling debris in your direction. In the fairly densely-populated East, they're more likely to run into stuff, but we don't get the monster ones that the Midwest and South get, either. (The ones in the South are vicious bastards that sneak up behind hills and then hit!)
* - There was some damage to the National Cathedral, and there're reports of cracks in the Washington Monument. And some action figures on my bookshelves fell over.
Seeing how bad the east coast reacted this time, I would hate to see how things will turn out when the New Madrid fire's it's kill shot and causes everything east of the the Mississippi to be flattened.*
I'm from there (Union County, Kentucky; we're where Indiana, Illinois and Kentucky meet). Fun fact, we got out of school my freshman year of high school because an earthquake was theoretically predicted to be coming from the New Madrid fault! My brother was a junior, so we took advantage of the day to visit Miami of Ohio for him.
It wouldn't kill the east coast. By the time the shockwaves got there, it wouldn't do much more than what we had today, IIR my recollections of reading about the 1812-13 quakes ringing bells in Boston.
Now, Memphis would be a disaster, and there'd be very significant damage for a good distance around there, and not all buildings are up to revised codes yet. But they are making preparations, and most of the individual houses are timber, which'll at least flex, though that won't do much about gas lines...
Brad