1989 Loma Prieta earthquake 3 was held in San Francisco on October 27 and Game 4 the following afternoon as the A's swept the Giants, four games to none. It is likely that the World Series game saved many lives, as Bay Area residents who would have normally been on the freeways were at home ready to watch the game when the earthquake hit. It is a rough estimate that thousands of people may have otherwise been on the Cypress Structure during the 5:00 p.m. rush-hour, as the structure was said to have carried 195,000 vehicles a day. Sources 1989 Loma Prieta earthquake The
1989 Loma Prieta earthquake its aftershocks occurred within a recognized seismic gap) but the earthquake that transpired was not what had been anticipated. The 1989 Loma Prieta event originated on an undiscovered oblique-slip reverse fault that is located adjacent to the San Andreas Fault. Since many forecasts had been presented for the region near Loma Prieta, seismologists were not taken by surprise by the October 1989 event. Between 1910 and 1989 there were 20 widely varying forecasts that were announced, with some that were highly specific, covering multiple aspects of an event, while others were less complete and vague. With a M6.5 event on