The 2001 Nisqually earthquake on February 28 , 2001 , caused minor damage to the structure that was lessened by a seismic retrofit completed in 1996 . After the September 11 , 2001 attacks , the building was closed to public access and several security features were added to the surrounding perimeter
2001 Nisqually earthquake
2001 Nisqually earthquake
Federal Reserve Bank Building (Seattle)