Washington Monument Earthquake Update
On Tuesday, August 23, 2011, a 5.8 magnitude earthquake, occurred 84 miles southwest of Washington, D.C., damaging the Washington Monument. The National Park Service has temporarily closed the Monument and is assessing the damage to it.
Post Earthquake Assessment 12-22-11 (large pdf)
Washington Monument Historic Stucture Report (Very Large File) (Found under National Capital Parks, Washington Monunment Historic Structure Report Vol 1.)