Whether experienced in reality or in dreams, being caught in the midst of a natural disaster is an unquestionably horrific experience. Significantly disturbing dreams, like this one, will always contain substantial meanings, and nightmares of disaster speak volumes about your current state of mind.
Usually, a catastrophe dream alludes to feelings of disaster looming in your waking life. You might feel as though you cannot survive whatever turmoil or dilemma you're currently challenged with, and instead are lost in the cataclysmic wreckage left in the wake your dream-disaster. If you tend to have a disaster dream, examine what exactly you are feeling overwhelmed or defeated about, and rationally address the issue.