A 5.1 isn't going to do much damage in socal, especially where it was epicentered. Probably the worst is going to be knocked over liquor bottles at the supermarket. Awkward timing, but not a disaster.
TBH a 5.1 is not a big deal unless you're right on top of it. People near the epicenter might have to readjust some pictures on their walls, but it's not the most densely populated area
My best wishes to the Southern Californians of HN