The Loma Prieta earthquake also known as the Quake of '89 and the World Series Earthquake, struck the San Francisco Bay Area of California on Tuesday, October 17, 1989, at 5:04 pm local time. Caused by a slip along the San Andreas Fault, the quake lasted 10–15 seconds and measured 6.9 on both the moment magnitude scale and on the Richter magnitude scale. The quake killed 63 people throughout Northern California, injured 3,757 and left some 3,000–12,000 people homeless.

The earthquake occurred during the warm-up practice for the third game of the 1989 World Series, featuring both of the Bay Area's Major League Baseball teams, the Oakland Athletics and the San Francisco Giants. Because of game-related sports coverage, this was the first major earthquake in the United States to have its initial jolt broadcast live on television. (more...)