In 1968 , the records were moved to a new County Government Center . Many historic brick buildings on the Pacific Garden Mall were damaged during the 1989 Loma Prieta earthquake , but again the Octagon survived . On March 24 , 1971 , it was added to the National Register of Historic Places
1989 Loma Prieta earthquake
1989 Loma Prieta earthquake
Octagon Building (Santa Cruz, California)