I just moved back from Oak Harbor on Whidbey Island. I was working over there during the week the last few years but my home is in eastern Washington. I was always thinking about the big one and being stuck over there. All of the tsunami models showed Oak harbor to be safe, but Deception Pass Bridge was a definite goner, along with our water supply main which came from Anacortes that crossed under bridge as well. They don’t have enough water supply on the island to make up that loss. We figured the Navy would pull up an aircraft carrier with a desalinization plant because of the Navel Air Station located there.
I know a woman that works (worked?) in Seattle awhile ago and had her car topper filled with emergency supplies in case the quake happened while she was at work. Some people scoffed at her, but as long as she had an attitude of being prepared and not being afraid I was for her.
I had to look up how much water a carrier can make. The web said 100,000 gallons a day are extra than what the normal operations require. Lets say they could ration the ship’s water and be able to supply 200,000. There are 356,000 people on Whidbey Island, so each person could get 0.6 gallons a day.
Although I bet there are a lot of water wells on the island that could supply water if they can get electricity to them to run the pumps.
I have camping water-filters in my various emergency kits so making drinking water in Western Washington won’t be a problem. Until somebody tries to steal it from me!
And speaking of somebody wanting my water filter, I’m guessing Seattle (and Portland and Vancouver, etc.) would be wanting their own aircraft carriers!