I re-read the Pulitzer Prize winning New Yorker article The Really Big One from time to time. Not only is it fantastic writing it’s also one the most frightening gotdam things that has been written in the 21st century. The PNW in a megathrust subduction zone earthquake would be utterly destroyed, the most devastating natural disaster in U.S. history by far. And it could happen, that subduction zone is hundreds of years overdue for a megathrust earthquake. The last one occurred approximately the year 1700, which caused a huge tsunami in Japan that was recorded in Japanese folklore.