Being such a rich, advanced and modern country Haiti found its hi-tech systems vulnerable to earthquakes?
//sarc
Seriously. Its dirt poor. It needs liberty and capitalism, badly.
Plus when you get that high on the rochter scale, concrete basically turns liquid.
I think its the sphincter factor scale
Bingo..., the Richter Scale is logarithmic. A 6.0 quake is 10 times as severe as a 5.0 quake (and so on...). Without VERY well engineered construction, with a lot of high quality steel reinforcement, your typical concrete building reverts to SAND in short order!