San Bruno, California major shopping centers, Bayhill (located on the old U.S. Navy property between San Bruno Avenue and Sneath Lane) and Tanforan. With final approval by the San Bruno City Council, construction proceeded on these major retail developments. Prior to these developments, most of the city's retail businesses were located on San Mateo Avenue and El Camino Real. San Bruno is one of two cities in the Bay Area that manages its own cable TV and internet system. The October 17, 1989, Loma Prieta earthquake (6.9 magnitude) caused some damage in the city. The U.S. Postal Service's Western Regional headquarters, then the
1989 Loma Prieta earthquake is the most studied fault on Earth. Andrew Lawson, a geologist from the University of California, Berkeley, had named the fault after the San Andreas Lake (prior to the occurrence of the 1906 San Francisco earthquake) and later led an investigation into that event. The San Andreas Fault ruptured for a length of during the 1906 shock, both to the north of San Francisco and to the south in the Santa Cruz Mountains region. Several long term forecasts for a large shock along the San Andreas Fault in that area had been made public prior to 1989 (the event and