I can confirm (NW DC). Still feeling a little disoriented.
DC, yup, gave me flashbacks to my childhood memories of Tokyo.
I'm a lifelong Californian ... I know the feeling! They're saying it was a 5.9 -- that's pretty respectable. Also, it depends on the kind of ground you're on as to how it will feel. A dinky little 5.4 hit near where I live about three years ago, the epicenter less than half a mile away, and it was a solid, frightening, fast jolt, but not much more (though it certainly "disoriented" me for a bit!). Yet five to eight miles away on either side of the ridge where I live, that little quake lasted for nearly a minute (wave lengths, like a pebble tossed in water) and wreaked havoc in quite a few stores, with entire inventories crashing down off of shelves.
Earthquakes are remarkably effective reminders of just WHO is in charge on this ol' earth ... and it ain't man! They can be pretty humbling!