Magnitude 4.0 earthquake rocks San Francisco area

Name: Magnitude 4.0 earthquake rocks San Francisco area
Uploaded: 2015-07-21T16:00:04Z
Duration: 30 s
Description: The U.S. Geological Survey said a 4.0-magnitude earthquake rattled the San Francisco Bay Area before dawn Tuesday. No damage or injuries were immediately reported. This comes less than a year after a deadly 6.0-magnitude quake hit South Napa.

The U.S. Geological Survey said a 4.0-magnitude earthquake rattled the San Francisco Bay Area before dawn Tuesday. No damage or injuries were immediately reported. This comes less than a year after a deadly 6.0-magnitude quake hit South Napa.