Natural disasters are just that-- complete disasters, they devastate lives, cause pain and misery for thousands of people and can threaten smaller societys, but stopping them would be more disasterous if it were possible. These rare occurences are all part of our planet's natural weather cycle. To stop them would disrupt the cycle and perhaps cause greater and more sever side effects. Our only hope as mere humans is to prepare ourselves the best we can, monitor the likelihood of these events occurring, ensure that safety procedures are in place and allow ourselves a chance. We can't stop these from happening but if we can reduce the effects through preparation, they won't be such major disasters anymore.
Ali