OienLabs

If you hang on there for a short while we maybe can call it Galileo.

See Link: Quake may have altered Earth's rotation Poles are wobbling with up to 33 feet. No wonder I'm a little bit unsteady from time to time.

All caches destiny is to disappear. Sooner or later. How quick, is the choice of the owner actually. Did he/she select a good place for the cache? Was it intentionally put on vulnerable spot? Of course you shold alway be careful to put the cache back in place exactly as you found it. But Geo-guilt - Na, don't think so.