I'd be nervous about having land below sea-level like you find around the Salton Sea and other parts.
If you wanted to break something in two, you'd look for the weakest part and if the Pacific plate is heading North, that friction could eventually bust-off everything West of these low-lying areas until the Salton Sea becomes a real sea (or bay, actually) with fish in it.
As an experiment, take a couple of graham crackers, thin an area near the edge on one, and then rub the two together (left hand up, right hand down) and see if it cracks into the area that was made 'shallow' intentionally. If that doesn't work, try smacking the pieces together. Or, if that doesn't work, raise and lower each piece against one another and smack the edges together (this should work).
If it still hasn't broken, place dark chocolate and marshmellows on each piece- put it under the broiler for 2-4 mins. and eat them both. I forget what it's called, but when my mom made them we never gave a thought about earthquakes. And, mysteriously didn't have any.
You made the earth move but can’t remember if it was on a Sealy or Serta. Didn’t ya?
s’mores.
As soon as you started talking about graham crackers, I thought of them.
Or graham crackers and milk.
Good thing to have in your earthquake kit;-)