Haiti is a poor nation. Even if warned, I doubt the funding for an emergency plan was anyone's priority.
Yea Timster sad but true , it was a no win situation for sure. I don't know if there will ever be any real hope unless someone is willing to invest and put jobs there for a starter. After this a new building code should be put in place to make it a safer place but then again as you said it a poor nation.
If they do rebuild, I'd say the codes would be more towards Hurricanes. I'd guess most of them would just be happy with a roof, and really happy with one that didn't fly off in high winds. Haiti isn't excactly the most earthquake prone place on earth, maybe a reason they blew off the warnings.