Full-Rip 9.0By: Sandi Doughton Scientific reportage on what we know and dont know about the mega earthquake predicted to hit the Pacific Northwest Scientists have identified Seattle, Portland, and Vancouver as the urban centers of what will be the biggest earthquakethe Really Big Onein the continental United States. A quake will happenin fact, its actually overdue. The Cascadia subduction zone is 750 miles long, running along the Pacific coast from Northern