SEATTLE — Scientists warn Northwesterners to pay close attention to the disaster unfolding in Japan because the same thing is heading our way.
The enormous earthquake that occurred Thursday night, accompanied by tsunami waves 20 feet high or more, is virtually identical to what the Pacific Northwest coast may experience if the offshore fault known as the Cascadia subduction zone ruptures.
"It's the finest illustration of what we're going to experience, and I'm sure Japan is better prepared than we are," said John Vidale, director of the Pacific Northwest Seismic Network at the University of Washington. The Cascadia fault last ruptured in 1700, causing a magnitude 9 earthquake and a tsunami that may have been larger than the one that hit Japan. Major earthquakes on the Cascadia fault happen every 400 to 500 years, but new research suggests they might happen much more frequently...