Why did haiti earthquake cause so much damage?

I think so many died in the Haiti earthquake because the people of the country weren't very well equipped or fully prepared for such situations as natural disasters. Their building constructions weren't adequate for the force of the quake. Most died due to the lack of rescue service as the country is amongst the poorest in the world.

One of the major contributing factors to the high death toll was the fact that the earthquake knocked out vital infrastructure. Because communication networks and infrastructure such as telephone and radio towers and networks were affected, this delayed the news of the catastrophe, slowing down both local and overseas response and aid to Haiti.