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Sometime in the future a powerful earthquake and tsunami will devastate the Pacific Northwest. The Cascadia Subduction Zone is a crack in the ocean floor from California to British Columbia. It is nearly identical to the fault that ruptured off Sumatra in December 2004, killing hundreds of thousands. What are cities and towns from Vancouver to Sacramento doing to prepare for this natural disaster?
Tsunamis are among the most destructive natural disasters on Earth. What are these enormous waves that roll in from the ocean? How do they form?...
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