Ok calmus i have the answer to this question, i've been talking about it for quite a long time.
I've built a whole theory about this natural disasters, and i've been able to prove that this is mother nature performing ethnic cleansing on useless races.
If we check the past 10 year disasters in the world, you'll see that asia+africa+middle has been hit a lot, and this is because mother nature knows the world does not need more asians taking up resources, or people spreading aids nor terrorists bombing schools, so and since nobody is doing anything, mother nature does the needed ethnic cleansing, and best way is through tsunamis and earthquakes.
Using volcanos for ethnic cleansing has been proven useless (watch chile, no dead people so far), same goes for floods! Hurricanes are still being studied by mother nature, just remember my poem "The sky cried, the niggahz died" and you will understand what happened in new orleans lol.
Now its usa's turn, because all of the asians, latins, blacks, are hidding over there, but dont worry about it, mother nature will perform, as usual, the needed ethnic cleansing, without harming the good people.