40 year resident of the SFBA here. In an apartment complex, there's an earthquake. The building creaks and groans like it is going to fold up like a folding wine rack. Everyone in each unit opens their door and looks out at everyone else. If there's a pool in the middle of the complex, they watch the water slopping back and forth for a moment. Then the doors all close and everybody goes back to whatever they were doing before.
To us, it's something mildly interesting. 'Hey, did you feel the earthquake yesterday' watercooler fodder. Unless it's big enough to have a name. That's different.
I felt the Northridge quake pretty good down here. 80’s and early 90’s there were quite a few out by El Centro and the Salton Sea that were pretty big and we rolled pretty good down here but other then that I can’t remember really having a big shaker down here. I guess San Diego has been pretty lucky, we don’t really have any major faults in the city/county except for maybe the Rose Canyon fault. Our luck will run out someday though.