Cook Telescope

Historical marker location:

The National Mall, District of Columbia

( Marker can be reached from Independence Avenue Southwest west of 4th Street Southwest, on the right 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.