I'd certainly take every reasonable precaution to survive a quake but preventing big ones is a far better option. It's not the earth cares either way.That may work for you but I want my family protected so if there is something that can be done we should do it. We certainly need to know what the options are.The Earth and it's tectonics is far beyond human intervention so just accept it. Nothing wrong with having a week's worth of water, food, and batteries but the only way to ensure you aren't trapped under a building or worse is to sleep in a tent out in the open countryside. Relax.
Single story would frame home bolted onto the mud sill and on solid rock is the best and safest way to keep the family safe in EQ Country. Also, a flat lot with no landslide risk from above.
SF and the entire Bay Area and the State are EQ conscious and have retrofitted most building, built High Rise building on rollers well below ground level with sprinklers since fire has been a second hit when a big one strikes.
The 06 quake was a big one, but my grandfather (who was 12 at the time) always referred to that time a "the fire". He and his two older brother's walked from their home on Dupont St. (Now named Grant Ave) in North Beach through China Town to Market St. Later he and his family took the ferry to Oakland as the fire began to threaten their home.