Since the big 6.0 San Francisco earthquake this weekend, there have been 125 North Bay quakes--and counting..
Most have been small, some not felt.. The biggest was a 3.6 that happened hours after the initial shaking.
While aftershocks are normal, this has rattled an area that has not felt shaking like this for some time---and it's little comfort to hear this: The USGS says there's a 5% chance of bigger shaking to come..
