Voluntary evac now underway.
This story is really old, and concerns a geologic hazard that most reasonably aware people on the west coast understand. Though it wasn't due to the cascadia fault system, Seattle suffered a major 6.7 magnitude quake in 2001. We have a bunch of volcanoes too. Sometimes they erupt. In fact, as chance would have it, I'll be in the Mt St Helens blast zone tomorrow, taking pictures.In regards to earthquakes in the US, all I have ever heard was San Andreas - this article was news to me. Anybody know more about the Cascadia fault line in Oregon and Washington? (This thread seemed to be the closest to the subject.)
http://www.newyorker.com/magazine/2015/07/20/the-really-big-one