The Knot Garden

Historical marker location:

Arboretum, District of Columbia

( Marker can be reached from Meadow Road Northeast, 0.1 miles west of Ellipse Road Northeast, on the left when traveling west.)

The District was the site of a major earthquake in 2011: On August 23, 2011, a 5.8 magnitude earthquake struck the East Coast of the United States, with its epicenter located in Mineral, Virginia. The quake was felt strongly in Washington, D.C., causing damage to several buildings, including the Washington Monument and the National Cathedral.