Nov. 28 (Bloomberg) -- An earthquake of magnitude 6.2 struck off California’s northern coast, the U.S. Geological Survey said in an e-mailed alert.

The temblor struck at 5:43 a.m. local time today, at a depth of 62 miles (100 kilometers), the USGS said. The quake took place 133 miles west of Eureka, California, the monitoring agency said.

No tsunami is expected from the undersea quake, the USGS the West Coast and Alaska Tsunami Warning Center said in a separate alert.

To contact the reporter on this story: Heather Langan in London at hlangan@bloomberg.net.

Last Updated: November 28, 2008 09:07 EST