2007 Alum Rock earthquake occurred on in Alum Rock Park in San Jose , California . It measured 5.6 on the moment magnitude scale and had a maximum Mercalli intensity of VI ( '' Strong '' ) . The event was then the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake , which measured 6.9 on the moment magnitude scale , but was later surpassed by the 2014 South Napa earthquake . Ground shaking from the Alum Rock quake reached San Francisco and Oakland and other points further north . Sixty thousand felt reports existed far beyond Santa Rosa , as far north as Eugene , Oregon
2014 South Napa earthquake
2014 South Napa earthquake
2007 Alum Rock earthquake