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A study published yesterday by the School of Environment and Sustainability at Royal Roads University in Canada suggests that conditions in the Pacific Northwest are ripe for another megaquake on the order of the one that struck the region 313 years ago and swamped most of the area with tsunamis and devastating quakes. The area in question stretches from northern Vancouver Island to northern California, and includes major cities such as Vancouver, Seattle and Portland. The researchers extracted sediment cores that they were able to radiocarbon in order to precisely date past megathrust earthquakes that took place along the Cascadia subduction zone.
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