The United States has a population density of 70 persons per square mile. World population density is 100, Cuba's is 235 and China's is 325. Haiti's population density is almost 600 people per square mile. ...
Let me ask you this Luther: If the quakes had occured like that in New York city would the deaths be as bad? I'd say they could be worse. Earthquakes can topple skyscrapers.
Maybe you can add poverty to it.... but in the end overpopulation always creates risk of disaster.