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The Southern California Earthquake Data Center has detected eight minor quakes of magnitude 3.1 or higher so far this afternoon in the Wheeler Ridge area near the Grapevine on the Bakersfield side of the Tehachapi Mountains. The largest measured 4.7 (shake map) at 1:24 pm and was felt a bit around the SoCal region. The most recent wobbler, at 5:09 pm, came in at magnitude 3.7—more than a baby, but not quite a pre-teen (so to speak.) Fun fact: the biggest, scariest 20th-century quake in [* added: Southern] California snapped right around there in 1952, not on the more feared San Andreas Fault. Swarms of little temblors and aftershocks like this happen fairly often, but if the world should happen to end later tonight, it was nice knowing you all.
FYI: The SoCal Earthquake Center's info page also explains why the cool kids never say "Richter scale" anymore.