Did you feel it? Of course you did. Everyone's been on edge since DC rattled. And you've been whispering hail marys and knocking on wood every time you hear rumblings of a little one nearby. Maybe you noticed it because it rattled the ice in your glass while you enjoyed a drink at the bar. Or maybe you hardly noticed because the Muni line rumbled past your apartment and the Colbert Report was turned up too loud. Or perhaps it gently woke you up while you were trying to drift off to sleep.
Anyway, USGS says it was a 2.9, centered 7 miles Southwest of City Hall, which is under Lake Merced or Fort Funston somewhere. No worries. You'll remember to check the batteries in your earthquake kit in the morning. Hope you're OK, out there!