1989 Loma Prieta earthquake earthquake precursor, more recent studies have cast doubt on the connection, attributing the Corralitos signals to either unrelated magnetic disturbance or, even more simply, to sensor-system malfunction. The earthquake caused severe damage in some very specific locations in the San Francisco Bay Area, most notably on unstable soil in San Francisco and Oakland. Oakland City Hall was evacuated after the earthquake until a US$80M seismic retrofit and hazard abatement work was completed in 1995. Many other communities sustained severe damage throughout the region located in Alameda, San Mateo, Santa Clara, San Benito, Santa Cruz and Monterey counties. Major property damage
Emergency management in American universities first affected by the 1906 San Francisco earthquake which destroyed much of the original construction on campus. Two of the buildings most badly damaged by the 1906 earthquake were the Old Gymnasium and campus library, these two elaborate buildings had been damaged before they were occupied so Standford officials decided to demolish them completely. In 1989 Stanford sustained further damage after the Loma Prieta earthquake, which caused them to permanently close the Old Chemistry Building which had been commissioned before the 1906 earthquake occurred. Many of the campuses historical buildings that had been damaged by both the 1906 and 1989