If an earthquake moves an entire city 10 feet in a given direction, how are property and boundary lines affected?

If everything moved the same 10 feet there is no problem.

This is a good question. Take this for example. Assume the fence divides property. Would the neighbor now own your fence. I don’t know the answer but it is interesting.

@johnpowell that’s really cool.

It is a very interesting question. I can’t imagine the earthquake managed to move everything, neatly and tidily. I imagine it will take some sorting out over the next several years. Probably not a big deal, but the may very well effect some property line disputes.

Well, the earthquake in Chilé tilted the Earth almost three inches… Does that mean that I own the trash can?

10 feet? Seriously?
I don’t know about Chile but in the US, property laws are pretty unforgiving of geological activity. If your house slides onto someone’s property, you’re in violation.

Hopefully in such event, your neighbor isn’t a complete douchetool and would opt not to take you to court in favor of a 6pack