Natural Disaster or Natural Selection?

I've been thinking of the terrible natural disasters in China and Myanmar. They seem so horrific. The planet is designed to hold so many people and with these natural disasters the planet seems to be having a natural selection. Like, when deformed babies a born they might die because of Natural selection. Natural selection means that the planet needs to have a balanced population because the world can only hold 10 billion people. So when you think of these natural disasters and the effect they have on the planet you cant help but think that this has something to do with natural selection. The phillipines population has soared 60 MILLION in the past decade. How can this not be natural selection to keep the planet at it's population?