1989 Loma Prieta earthquake larger loss of life, as several of the Bay Area's major transportation structures suffered catastrophic failures. The collapse of a section of the double-deck Nimitz Freeway in Oakland was the site of the largest number of casualties for the event, but the collapse of man-made structures and other related accidents contributed to casualties occurring in San Francisco, Los Altos, and Santa Cruz. The history of earthquake investigations in California has been largely focused on the San Andreas Fault System, due to its strong influence in the state as the boundary between the Pacific Plate and the North American Plate; it
Sports in the San Francisco Bay Area both teams played against each other, and Oakland swept the Giants in a 4-game series. However, the series is probably best known for the 1989 Loma Prieta earthquake which struck on the day of Game 3. San Francisco was ranked #1 in 2012 among America's Best Baseball cities. The study examined which U.S. metro areas have produced the most Major Leaguers since 1920. Oakland is home of the Golden State Warriors in the NBA, who currently play at the Oracle Arena. The Warriors originally played in Philadelphia, but relocated to San Francisco in 1962 and then to Oakland in 1971.