1. Get lucky. If you are lucky there is some time, travel to the most survivable place you can. If you are not so lucky there is little or no no time, be very rude and get into the most survivable spot you see.

Knowing where to go in reaction to different potential events; training and practice to develop situational awareness.

2. Get lucky. If you are lucky the event is one time and of limited duration, then initial survival is a long step toward long-term survival and bug-in preparation can be a life-saver. If you are not so lucky the event is repetitive in nature and of unknown but extended duration, then escaping the impact zone is probably your best step toward long-term survival and your bug-out preparation the focus for life-saving.

Knowing what to do in reaction to different potential events; training and practice plus being "equipped to survive."