It remained a relatively small community until the late 1940s , when developer Henry Doelger established Westlake , a major district of homes and businesses , including the Westlake Shopping Center . On March 22 , 1957 , Daly City was again the epicenter of an earthquake , this one a 5.3 magnitude quake on the San Andreas Fault , which caused some structural damage in Westlake and closed State Route 1 along the Westlake Palisades . In 1963 , Daly City annexed the city of Bayshore . The Cow Palace , located in Bayshore and now within the city limits of Daly City , was the site of the following year 's Republican National Convention . The Daly City BART station opened on September 11 , 1972 , providing northern San Mateo County with rail service to downtown San Francisco and other parts of the Bay Area . The line was extended south to Colma in 1996 and then to Millbrae and the San Francisco International Airport in 2003
earthquake
1957 San Francisco earthquake
Daly City, California