I lived in the SF bay area for six years a long time ago. I was young without too many possessions yet, so I'm sure others will have many more insights. The measures you list all sound sensible.
In my case, really all that I did was to keep breakables stowed away - - for example, no pretty plates or china figurines out on shelves they could fall from easily. Just look around you and imagine that someone would shake everything; you don't want anything fragile in a precarious position where it could fall and you don't want anything heavy (like a tall bookcase) to be unsecured. I had a few 8x10 pictures on the wall, and had they fallen, breaking the glass, I would have simply cleaned up the glass and replaced it later on.
I never had anything damaged by an earthquake during that time, although I experienced several. I am sure that you will, too. Most of the ones I experienced were really small, and none were big, although you never know.
"You can never cross the ocean until you have the courage to lose sight of the shore." - - - C. Columbus