GC, I read an article on the USGS website. They were stating the quake was a Horizontal shift, which causes less damage but is felt over a greater area than a Vertical shift. I don’t know much about that stuff, just relaying what I read.I have many friends up in Coeur d'Alene, and near Spokane. Most of them said they felt it. It must have been a pretty low frequency quake to be felt all the way up there.