Andreas73 saidUpryte, no need to panic. Most of the West Coast is made up of cliffs. The only thing that might be destroyed or get wet are things down by the water's edge, as even a tsunami wave cannot go against gravity for long. Just listen to the sirens, and if you're in a low lying area, follow the blue tsunami evacuation route signs.
KATU Portland has been pondering if the tsunami will reach Portland. That's just crazy and amounts to fearmongering, as a tsunami does not have the energy to move 90 miles inland, even if it is only 30 ft above sea level.
Hah, and KATU isn't even the FOX affiliate. Apparently there was nothing to "see" at the coast as the waves arrived during an outgoing tide.
BTW: I've been doing some water sampling over on the coast over the last few months. The Oregon coast doesn't have much low-lying land, but I'm stunned at how many McMansions have gone up on what little bits that there are in the last couple of decades. There are some of those places that just deserve to be washed away.
Edit Re: Inland effects. I seem to recall reading that there are some tsunami-caused landforms around Seattle. Even in Lake Washington.
I remember a few years ago, when during one of the normal winter storms some of them went over the cliffs they were built on due to erosion. The owners did not have insurance as the insurance companies deemed the homes uninsurable due to the inherent risk. So the owners went to the government for help. I do not remember if they got any, but only fools build their house on sand... they got what they had coming to them.
I would have been a little leery on Long Beach, WA today... that's one of the few spots where there's no quick way out.
Mindgarden, do you have any specifics on these tsunami-caused landforms? I study geosciences, and the PacNW is one of my favorite areas in the world (lived there for 13 years after all.)