Looks to be built like those Chinese buildings that collapse.
http://i.telegraph.co.uk/multimedia/archive/01432/China1_1432360i.jpg
That building is floating. An earthquake will bring it down.
FTA: the high-rise is made of concrete rather than steel, “resulting in a very heavy building. This heavy structure rests on layers of soft, compressible soil. The foundation of the Tower, however, consists only of a concrete slab supported by short piles that fail to reach the bedrock below. That foundation is inadequate to prevent settlement of a building with the weight of the Tower.”
The FTA statement coincides with my thinking. The engineering firm was negligent. The footing/foundation contractor should have known better. The city should have known better if they bothered to look at the geological survey. Basic fuster-cluck all around. IMO