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A massive crack beneath the Pacific Northwest could pose a serious threat to the American coastline, raising fears of a devastating earthquake and a tsunami reaching 100 feet in some locations. Deep beneath the ocean floor, the Cascadia Subduction Zone hides one of the most powerful seismic threats in North America, where enormous tectonic forces continue to build. If a major rupture occurs, the shaking could devastate coastal communities while powerful waves race toward the shore with little time to escape. Scientists have studied this fault for decades, but the scale of the danger is still difficult to comprehend. The threat is hidden beneath the ocean, but its consequences could reach far inland and change America’s coastline forever. ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- Our Social Media: ---------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------- This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.