Epicenter looks like the old Beckman Instruments facility in La Habra, at Harbor and Lambert
Err, that was the pinpoint of the foreshock , the main 5.1 shock is listed on Caltech SCEDC was centered at 33.929N 117.922W , a bit to the northeast.
fat fingered it on account of another aftershock, ‘tis a bit to the northwest, not northeast. and another in a swarm of aftershocks hits at 2205.
The old Alpha Beta warehouse?
Updated at 9:56 p.m.PDT:
Preliminary data suggests Friday night’s earthquake occurred on the Puente Hills thrust fault, which stretches from the San Gabriel Valley to downtown Los Angeles and caused the 1987 Whittier Narrows earthquake.
Friday night’s 5.1 earthquake hit only about 2 to 3 miles underneath the surface, which means the shaking is very concentrated in a small area, officials said.