Are you serious Shadi??? Our last eruption in this state was 1980. People had so much warning they got complacent. You don't need to worry about volcano evacuation routes. If you like to worry, the cataclysm we are typically concerned with in Western Washington is flooding. Get out with an agent and start looking at homes. When you find one you like you can ask for the seller's disclosure before you make an offer. Don't waste your time on Trulia.com.