UPDATE: USGS officials have revised the magnitude of tonight’s earthquake back up to 7.1.
At 8:30 p.m. California time, 5:30 p.m. Hawaii time, an earthquake with a preliminary magnitude of 6.9 hit Southern California.
The U.S. Geological Survey originally reported that the earthquake had a magnitude of 7.1.
At this time there are no immediate reports of damage or injuries.
If the preliminary magnitude is correct, it would be the largest Southern California quake in 20 years.
According to the Associated Press, the quake was felt downtown as a rolling motion that seemed to last at least a half-minute. It was felt as far away as Las Vegas, and the USGS says it also was felt in Mexico.
BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII.
This story will be updated as details become available.