This Series was also known as the ' '' " Bay Bridge Series , " ' '' ' '' " BART Series , " ' '' ' '' " Battle of the Bay , " ' '' and ' '' " Earthquake Series " ' '' as the two participant cities lie on opposite sides of San Francisco Bay , connected by the San Francisco – Oakland Bay Bridge and the Bay Area Rapid Transit ( BART ) system , and the 1989 Loma Prieta earthquake that occurred before the start of Game 3 . It was the first cross-town World Series ( involving two teams from the same metropolitan area ) since 1956 , and only the third such series that did not involve New York City ( the 1906 and 1944 World Series , which featured matchups between Chicago and St. Louis teams , were the others )
1989 Loma Prieta earthquake
1989 Loma Prieta earthquake
1989 World Series