A 5.8 is moderate. In Calif, only those close to the epicenter would feel it, because when the waves hit another fault, they kinda dissipate. The east coast is one solid plate, so the waves can just keep on going. Also, it was shallow, so folks within 50 miles of the epicenter probably felt a pretty good jolt.
But I've gotta laugh about the east coasts' lack of earthquake awareness. The last thing you do is go running out into the street, so all the glass and debris can rain down on you. Hell, they evacuated nearly every building from NYC to DC! LOL! From what I saw, not even a pane of glass broke in DC or NYC. Might be a few broken windows in Virginia, though.
Wolf Blitzer was funny. His eyes were huge as he described this violant shaking that lasted 25 or 30 seconds. An hour later, they found one of their cameras had been rolling and they caught it on film. When they showed the film, I lol'd! It showed a piece of studio scenery jiggling for about 4 seconds. That's it. Four seconds. Hell, when I was a kid an earthquake threw the entire bed across a carpeted floor, with me in it! Now THAT is an earthquake.