WASHINGTON, D.C.-- Safety nets have been installed under the ceiling of the Washington National Cathedral to protect visitors against falling debris.
The Cathedral was damaged by the earthquake that hit the east coast on Aug. 23.
Workers foung chips of mortar which had shaken loose from the Cathedral's 100 foot high vaulted ceilings after the quake.
Engineers also found damage to the building's spires and flying buttresses -- but no serious damage was found.
The safety nets are only there as a precaution.
The National Cathedral was completed in 1990 after 83 years of construction.