SoCal is located in San Diego, I think he's referring to their antenna facilities in LA.
I have got to believe there is an alternative location/contingency plan in effect, the same way that if SoCal's facilities go down, the workload is automatically shifted to another facility.
LA Center in Palmdale has had a few temporary outages that made the news and they always went off (relatively) without a hitch.
There always is.
About 4 years ago, there was a wildfire out in the Palmdale area, which ended up resulting in ZLA being evacuated. In cases like this, there are LOAs in place between ZOA, ZAB, and ZLC for each of them to extend their airspace boundaries to cover ZLA in case anything goes wrong. In this case, SCT was fine in Miramar, and they handed off to the appropriate ZOA or ZAB sector that was covering the area in question.
In L30's case, they handed off to either ZOA, ZAB, or ZLC depending on which way they were going.
It's easier also if something were to happen to SCT (as what did with the fire that was down there). Actually, now it's even easier than that. In the case they need to evacuate, they can just close down SCT and let ZLA handle the entire sector (that has happened before with the fires in Mira Mesa). Or, now that they've incorporated PSP into SCT, they still have the equipment over at the old PSP TRACON building. They can run over to there and operate their entire sectors from there.
A bigger problem, however, is a repeat of what happened with the last major fire down there (which resulted in the loss of the FIM VOR, which is essential to just about every arrival into the Basin), with the LHS VOR. GMN should be okay, but Lake Hughes is rather essential to the prop arrivals from the north and east into the basin (read: KIMMO2 arrivals into LAX and SMO). Loss of that one will add a bit more work onto the controllers at SCT.
BL.