I was just wondering what these hunter gatherer populations reacted to natural disasters that may have occured where they lived. Did they link it to their religious beliefs (which has definitely occured in civilization)? Were large populations wiped out by natural disasters?
You may be interested in the 'How did earlier civilisations deal with hurricanes and tornadoes?' section of the Popular Questions. Those threads don't address your question in full, but there's some relevant reading there.