In Washington, this could be anywhere!!! If this happen today, the dams along the Columbia would " Pop Like Zits" and could very well " Domino" as each one would flood the next dam..... When this eartyhquake hit , it did dam up the Columbia River For A Few Days And Actually Forced Wapato John Off HIs Ranch Near Stayman Flats As He And His Family Watched Their Cabin Float Away ANd Ruin Everything...