I have two likely situations - wildfire or earthquake. I plan to leave in case of a wildfire, carrying only essentials (the house and contents are insured). We won't have to go very far-it is less than a mile to the Pacific Ocean.
With an EQ, I will probably elect to shelter in place, camping in the back yard if the house is uninhabitable. I have a lifetime accumulation of outdoor gear to support this strategy. Biggest issue could be a postEQ conflagration with no hydrant water. In that case, see plan A. Basically we are set to either stay or go, depending upon what occurs.