A new map says an earthquake fault runs under the world-famous Rodeo Drive shopping district in Beverly Hills.
The California Geological Survey map released earlier this month used additional information to track a fault that originally was thought to end on the city's western edge.
The Los Angeles Times reported the Santa Monica fault zone actually extends another mile from West Los Angeles through the Beverly Hills central district and into the civic center area.
Scientists believe the fault could produce a magnitude-7 earthquake but the last temblor on the fault occurred at least 1,000 years ago.
California law bars new development on top of fault lines so the discovery could limit future construction projects there.
Beverly Hills spokeswoman Therese Kosterman says the city is evaluating the map changes.