I read about the earthquake in the newspaper the next morning. I was up and about when it happened, didn't feel anything. Neither did my neighbors.
BUT . . . we did hear a loud rumbling noise about that time, sounded like a big, big truck, but didn't last long enough to be a real one. Now we're thinking it may have been something like a sonic boom from underground. I've never heard of such a thing, but who knows? We're not in a serious seismic zone here. As far as I know, San Diego only gets minor tremors.
I was living in Los Angeles when the Northridge earthquake hit. That one shook me out of bed in the middle of the night. And, I was driving home in Wisconsin when a tornado dropped down on top of us, I had to drive out of it because there were no ditches on the road, nowhere to take shelter. Comparing the two experiences, I'll take my chances with an earthquake.