Aug. 23, 2011 Earthquake(01 of32)
Open Image ModalIn this Aug. 23, 2011 file photo, office workers gather on the sidewalk in downtown Washington moments after a 5.8 magnitude earthquake. (AP Photo/J. Scott Applewhite) (credit:AP)
Aug. 23, 2011, Earthquake(02 of32)
Open Image ModalPolice block off the alley behind the Embassy of Ecuador in D.C.'s Columbia Heights neighborhood after part of the building sustained damages following the Aug. 23, 2011 earthquake. (AP Photo/Pablo Martinez Monsivais) (credit:AP)
National Cathedral Damage(03 of32)
Open Image ModalLight from stained glass windows shines onto safety nets that were installed along the ceiling of the nave at the National Cathedral on Sept. 1, 2011, as a precautionary measure after parts of the structure was damaged in the Aug. 23, 2011, earthquake. (AP Photo/Jacquelyn Martin) (credit:AP)
National Cathedral Damage(04 of32)
Open Image ModalOne of the spires of the National Cathedral was heavily damaged during the Aug., 23, 2011, earthquake. (AP Photo/Pablo Martinez Monsivais) (credit:AP)
Traffic Gridlock Following Quake(05 of32)
Open Image ModalDrivers climb out of their cars to survey a traffic jam on 14th Street NW near the Ronald Reagan Building after a 5.8 magnitude earthquake rattled the East Coast on Aug. 23, 2011. (Photo by Chip Somodevilla/Getty Images) (credit:Getty)
5.8 Earthquake Hits East Coast(06 of32)
Open Image ModalWASHINGTON, DC - AUGUST 23: A driver climbs out of his cars to survey a traffic jam on 14th Street NW near the Ronald Reagan Building after a 5.8 magnitude earthquake rattled the East Coast August 23, 2011 in Washington, United States. The quake, centered near Miner, Virginia, rattled states from Maine to North Carolina but produced no serious injuries or damage. (Photo by Chip Somodevilla/Getty Images) (credit:Getty)
Aug. 23, 2011, Earthquake(07 of32)
Open Image ModalPeople crowd Pennsylvania Avenue near Freedom Plaza, on Aug. 23, 2011, as they evacuate buildings after a 5.8 magnitude earthquake. (Photo by Charles Dharapak/AP) (credit:AP)
Aug. 23, 2011, Earthquake(08 of32)
Open Image ModalCars are gridlocked on L Street NW in downtown Washington on Aug. 23, 2011, following a 5.8 magnitude earthquake. (AP Photo/Jacquelyn Martin) (credit:AP)
Aug. 23, 2011, Earthquake(09 of32)
Open Image ModalPeople stand on in the intersection of H Street NW and New York Avenue near the White House in Washington, on Aug. 23, 2011 after evacuating from buildings following a 5.8 magnitude earthquake that hit the Washington area. (AP Photo/Charles Dharapak) (credit:AP)
Aug. 23, 2011(10 of32)
Open Image ModalPeople stand at 18th Street NW and Pennsylvania Avenue near the World Bank on Tuesday, Aug. 23, 2011, after office buildings where evacuated following an earthquake in the Washington area. The 5.8 magnitude earthquake centered northwest of Richmond, Va., shook much of Washington, D.C., and was felt as far north as Rhode Island and New York City. (Photo by Pablo Martinez Monsivais/AP) (credit:AP)
National Cathedral Damage(11 of32)
Open Image ModalThe central tower of the Washington National Cathedral is shrouded in fog as a worker secures a beam on the of the southwest grand pinnacle, in Washington, on Thursday, Oct. 13, 2011. The Cathedral's central tower pinnacles were damaged by the magnitude 5.8 earthquake that struck the East Coast on August 23. The damaged portions of pinnacles are being removed to make the pinnacles and central tower stable until the stonework can be repaired and put back in place. (AP Photo/Nikki Kahn, Pool) (credit:AP)
Union Station(12 of32)
Open Image ModalEarthquake repairs in Union Station's Main Hall, as seen in December 2011. (credit:Rachel Tepper)
Union Station(13 of32)
Open Image ModalEarthquake repairs in Union Station's Main Hall, as seen in December 2011. (credit:Rachel Tepper)
Union Station(14 of32)
Open Image ModalEarthquake repairs in Union Station's Main Hall, as seen in December 2011. (credit:Rachel Tepper)
Union Station(15 of32)
Open Image ModalEarthquake repairs in Union Station's Main Hall, as seen in December 2011. (credit:Rachel Tepper)
Union Station(16 of32)
Open Image ModalEarthquake repairs in Union Station's Main Hall, as seen in December 2011. (credit:Rachel Tepper)
Washington Monument Damage(17 of32)
Open Image ModalIn this March 13, 2012, file photo, David Doyle, Chief Geodetic Surveyor with the National Oceanic and Atmospheric Administration (NOAA) National Geodetic Survey, turns a steel rod at the base of the Washington Monument used for surveying, in Washington. Government surveyors, in a report issued Tuesday, Aug. 21, 2012, have found that the Washington Monument did not sink further into the ground as a result of last year's 5.8-magnitude earthquake. The upper portion of the monument sustained several large cracks during the August 2011 quake, and it likely will be closed for repairs until 2014. (AP Photo/Charles Dharapak, File) (credit:AP)
Washington Monument Damage(18 of32)
Open Image ModalIn this Sept. 29, 2011 file photo, Dan Lemieux, manager of the Washington Monument inspection project, holds a loose chunk of marble off the monument damaged by an earthquake. Repairs to the Washington Monument will require massive scaffolding to be built around the 555-foot obelisk and may keep it closed until 2014 after it was damaged by an earthquake last year. (AP Photo/Ben Nuckols, File) (credit:AP)
Washington Monument Damage(19 of32)
Open Image ModalA team of engineers, from left, Dan Gach, Emma Cardini, center, and Katie Francis, harnessed to ropes , inspect the exterior of the Washington Monument for damage caused by last month's earthquake, Wednesday, Sept. 28, 2011, in Washington. (Photo by Evan Vucci/AP) (credit:AP)
Washington Monument Damage(20 of32)
Open Image ModalEmma Cardini, a civil engineer from Melrose, Mass., right, and a member of the difficult access team, dangles by a rope more than 500 feet above ground, with a co-worker Daniel Gach, as they inspect the exterior of the Washington Monument on the National Mall in Washington, Thursday, Sept. 29, 2011. (Photo by Manuel Balce Ceneta/AP) (credit:AP)
National Cathedral Damage(21 of32)
Open Image ModalA girl looks earthquake-damaged pinnacles at the National Cathedral on March 24, 2012. Tourists toured the cathedral's central tower for the first time since the 5.8 neartquake hit the U.S. capital on August 23, 2011. (Photo by Brendan Smialowski/AFP/Getty Images) (credit:Getty)
National Cathedral Damage(22 of32)
Open Image ModalThe earthquake-damaged tower of the National Cathedral in Washington, D.C., is seen from the central tower on March 24, 2012. The cathedral opened the central tower to tourist for the first time since the August 23, 2011 earthquake. (Photo by Brendan Smialowski/AFP/Getty Images) (credit:Getty)
National Cathedral Damage(23 of32)
Open Image ModalEmma Cardini, a member of the Difficult Access Team from Wiss, Janney, Elstner Associates, inspects a gargoyle while rapelling down one of the north tower on the west front of the National Cathedral while looking for damage from the Aug. 23, 2011, 5.8 magnitude earthquake on October 17, 2011 in Washington, D.C. (Photo by Chip Somodevilla/Getty Images) (credit:Getty)
National Cathedral Damage(24 of32)
Open Image ModalNational Cathedral Head Stone Mason Joe Alonso points to some of the damage the catheral sustained during the Aug. 23, 2011, 5.8-magnitude earthquake. (Photo by Chip Somodevilla/Getty Images) (credit:Getty)
Washington Monument Damage(25 of32)
Open Image ModalEngineers suspended by ropes conduct a block-by-block inspection of the Washington Monument exterior in Washington, D.C., on Oct. 3, 2011. (Photo by Jewel Samad/AFP/Getty Images) (credit:Getty)
Washington Monument Damage(26 of32)
Open Image ModalAn engineer of a Difficult Access Team with Wiss, Janney, Elstner Associates removes lose stones from the Washington Monument on Oct. 3, 2011. The DAT team continued the inspection of the monument to find whether there were more damages caused by the 5.8-magnitude earthquake on Aug. 23, 2011. (Photo by Alex Wong/Getty Images) (credit:Getty)
Virginia Earthquake Damage(27 of32)
Open Image ModalMorgan Nolan, center, joins other volunteers as they help to restock the shelves at Millers Market after the store was damaged by the Aug. 23, 2011, 5.8 earthquake in Mineral, Va. The epicenter of the quake, the East Coast's largest since 1944, was located a few miles outside of Mineral, a town of 430 people located about 50 miles west of Richmond. (Photo by Scott Olson/Getty Images) (credit:Getty)
Virginia Earthquake Damage(28 of32)
Open Image ModalA sign on the door lets customers know the Four Seasons Fitness club was closed after the building was damged by the Aug. 23, 2011, 5.8 earthquake in Mineral, Va. The epicenter of the quake, the East Coast's largest since 1944, was located a few miles outside of Mineral, a town of 430 people located about 50 miles west of Richmond. (Photo by Scott Olson/Getty Images) (credit:Getty)
Virginia Earthquake Damage(29 of32)
Open Image ModalThe chimneys and a portion of the wall are heavily damged on a landmark home in an area known as Cuckoo following the Aug. 23, 2011, 5.8 earthquake near Mineral, Va. The epicenter of the quake, the East Coast's largest since 1944, was located a few miles outside of Mineral, a town of 430 people located about 50 miles west of Richmond. (Photo by Scott Olson/Getty Images) (credit:Getty)
Virginia Earthquake Damage(30 of32)
Open Image ModalWorkers begin repairs on the City Hall building, which is also the local DMV office, after the building was damged by the Aug. 23, 2011, 5.8 earthquake in Mineral, Va. The epicenter of the quake, the East Coast's largest since 1944, was located a few miles outside of Mineral, a town of 430 people located about 50 miles west of Richmond. (Photo by Scott Olson/Getty Images) (credit:Getty)
Washington Monument Damage(31 of32)
Open Image ModalEngineers begin the process of conducting a block-by-block inspection of the exterior of the Washington Monument while suspended by ropes on Sept. 28, 2011. The National Park Service closed the landmark in the nation's capital indefinitely due to damage caused by the Aug. 23, 2011, 5.8 magnitude earthquake. (Photo by Mark Wilson/Getty Images) (credit:Getty)
National Cathedral Damage(32 of32)
Open Image ModalAgainst a foggy backdrop, from left, head stone mason Joe Alonso, Andy Uhl and Dave McAllister help guide the damaged upper portions of the southeast grand pinnacle as it is hoisted by a crane from atop the central tower of the Washington National Cathedral, in Washington, on Thursday, Oct. 13, 2011. The Cathedral's central tower pinnacles were damaged by the magnitude 5.8 earthquake that struck the East Coast on Aug. 23, 2011. The damaged portions of pinnacles are being removed to make the pinnacles and central tower stable until the stonework can be repaired and put back in place. (AP Photo/Nikki Kahn, Pool) (credit:AP)