According to the USGS, a
5.5 5.6 magnitude quake struck Northern California at 1:07 PM PT.
You can see the area of the quake on this map.
The USGS originally reported that the quake had a depth of 20.4 miles, but later said the depth was 17.5 miles. It was originally reported as a 5.3 magnitude, then was upgraded to a 5.5, then again to a 5.6 later this afternoon.
Did you feel it? If so, the USGS would like to hear from you – let them know on their “Did you feel ie?” map.