I heard today that the Haiti quake was a release of 3X the energy of the North Ridge quake. I have a feeling that might have hurt even high quality structures. Not as much, for sure, but still ...
If you look at photo #113 in the LA Times spread, you will see what is clearly a reinforced concrete building, only two stories tall, and just left of center is a complete mat of reinforcing steel, looks like 12" x 12" #5 bar, shaken completly free of the concrete that once encased it.