"Scientists have identified Seattle, Portland, and Vancouver as the urban centers of what will be the biggest earthquake, also called a mega-quake, in the continental United States. A quake will happen--in fact it's actually overdue. The Cascadia subduction zone is 750 miles lon…
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"Scientists have identified Seattle, Portland, and Vancouver as the urban centers of what will be the biggest earthquake, also called a mega-quake, in the continental United States. A quake will happen--in fact it's actually overdue. The Cascadia subduction zone is 750 miles lon…
"Scientists have identified Seattle, Portland, and Vancouver as the urban centers of what will be the biggest earthquake, also called a mega-quake, in the continental United States. A quake will happen--in fact it's actually overdue. The Cascadia subduction zone is 750 miles lon…