The good old U.S. Geological Survey website is fast out of the gate pegging the recent earthquake as a 5.8 magnitude tremor.
They also show the epicenter near Chino Hills, 29 miles southeast of downtown L.A.
Culver City note: The new LA Weekly building shakes like a leaf (at least around my desk) every time a car enters or leaves our garage, so it took a few extra seconds to figure out this was an actual earthquake and not just an SUV trying to find a parking space.
UPDATE: 2:50 p.m. The magnitude of the quake, which had originally been revised upward from 5.6 to 5.8 has since been knocked down to 5.4. Our cohorts at the OC Weekly felt it a bit more than we did.