Re: what would you do if this happened??
well, first of all, its probably too late if its already happened .... but from what I've read underground is likely a good place to be (provided its not on the ocean or some other body of water that wld be likely to flood it ...). I think Native American legends speak of going into deep underground caverns.
When its over you probably want to be somewhere you can survive without modern day conveniences - like electricity. Fresh water, good soil, not too hot or cold ....
Also, I think the more you know about rocks, water, plants, animals, and people -- the better.
that being said, however, I plan on ascending to a higher dimension earth and continuing on w/many of my fellow human beings with the next stage of earth's evolution. it remains to be seen whether or not I will be around to witness any of the actual pole shift -- altho I imagine its going to be one helluva ride ....