Several key attributes of the event were shared with the 1994 Northridge earthquake , considering both were brought about by thrust faults in the mountains north of Los Angeles , and each resulting earthquake being similar in magnitude , though no surface rupture occurred in 1994 . Since both occurred in urban and industrial areas and resulted in significant economic impairment , each event drew critical observation from planning authorities , and has been thoroughly studied in the scientific communities
1994 Northridge earthquake
1994 Northridge earthquake
1971 San Fernando earthquake