You might be more concerned with a huge earthquake caused by a failure of the Cascadia plate, followed by a 100- foot high tsunami. Good luck!
I am in the zone of devastation here in Oregon. I visit all the earthquake threads here on FR because of that concern. I was being a little tongue in check with the lawn mower gas. We only get less than 10% of our gasoline from CA. I do try to keep my supply of generator gas full though.