I've not looked far for imagery of the disaster, but this website has a series: http://cryptome.org/info/haiti-quake/haiti-quake-01.htm and three other sets of photos.

What I did note was the aerial imagery of residential areas, which suggests homes were intact; others taken from the ground suggest homes have collapsed downwards onto the ground floor.

Anyone able to interpret better than this "armchair"? Calling Entropy!