I am also from Eastern Washington; family owns an 8500 acre wheat farm outside of the tricities. This is the area that I would go to in the event of a bad turn of events. Why would you want to bug out of this location? There are no earthquakes, sunamis, floods, hurricanes, tornadoes or even heavy snow fall in this area. The nearest volcano is at least 100 miles away, which is far enough away that if it erupted it would not harm you. Also, the fewer people the lower the chance of any civil disruption.