A 6.5 magnitude earthquake struck Thursday morning off the Northern California Coast that was felt in the Bay Area, officials said.
The quake hit on the San Andreas fault about 7 a.m. in the Pacific Ocean, about 100 miles off coast of Ferndale in Humboldt County, according to the U.S. Geological Survey. It was initially reported as a 6.8 magnitude quake, and later downgraded to a 6.5 rattler.