Secure your supplies

Reports from the Bahamas that people are willing to kill each other to survive. In this situation, possessing supplies makes you a target.

Civilized society is a thin veneer. Humans are just like any other animal on Earth: when supplies are in short supply and survival is on the line, even normally well behaved people will discard societal norms to survive. 

This is why I always increase my security posture during a disaster.