Starting with the basics I'd want First Aid/CPR training, orienteering, HazMat/WMD awareness, fire building, edged tool safety (knives, axes, etc.), shelter building, fire safety course, weather safety/awareness, water acquisition/purification, food gathering, 72hr kit construction, and actual disaster case studies (what people did right/wrong). The Boy Scout Fieldbook is a great reference for some of this stuff.