Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Southern California Jolted by Biggest Quake in 20 Years Associated Press LOS ANGELES, CALIFORNIA - The largest Southern California quake in nearly 20 years jolted an area stretching from Sacramento to Las Vegas to Mexico as it cracked buildings, set fires, wrecked roads but only caused minor injuries. Seismologists warned that large aftershocks were expected to continue for days, if not weeks. The 7.1-magnitude quake struck at 8:19 p.m. Friday and was centered 11 miles (18 kilometers) from Ridgecrest, the same area of the Mojave Desert where a 6.4-magnitude temblor hit just a day earlier. References Visible links Hidden links: 1. file://localhost/archive/research-offers-new-insights-boxers-brain-injuries .