Folks on Twitter were reporting it being felt all the way in NYC. Data from USGS.
Image of corner of 13th and Penn post-quake, from @levyj413.
Several reports say that the effects were felt in Virginia, Philadelphia, North Carolina, Connectitcut, Toronto, Boston, New York City, Ohio, and Maryland. Unconfirmed reports that it was felt in Colorado.
My web stats log can confirm that it was indeed felt in Ohio, as a good third of requests came from that location.
@fednewsradio: Pentagon, @whitehouse, Capitol all briefly evacuated after earthquake. @NavyNews says Pentagon has now been deemed safe.
According to USGS, the magnitude was “greater than 5 on the Richter scale.”
Epicenter was Virginia. Centered at 37.875°N, 77.908°W near the town of Jackson. Magnitude of 5.8.
USGS details here.
J. McKinley posted first hand images of the “DC Earthquake Devastation.”
Twitter wordcloud of the Quake, from the Daily Dot.
A few minutes ago from TBD.com:
Californians might sniff at D.C.’s reaction to this 5.9 earthquake, but the damage it caused was very real. The National Cathedral seems to have gotten the worst of it, with a Washington Business Journal reporter confirming that at least three pinnacles on the central tower have broken off.