USGS reported 11 earthqaukes (the largest a magnitude 5.6) off the Oregon coastline today, right at the Oregon-CA border on the Juan de Fuca rise associated with the subduction zone of the Pacific plates and North American plates. This area, the Juan de Fuca fault subduction zone, has been quiet since 1700 - when a magnitude 9.0 quake occurred dropping land as much as 2 meters (9 feet) over the entire 800 mile Vancouver-Washington-Oregon coastline. That quake in 1700 caused documented 10 meter (30 foot) high tsunami's recorded in Japan that crushed many villages and towns. Many previous large earthquakes...