Volcanic and Seismic Threats to Northwest U. S.

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The discussion highlights the potential impacts of a Mt. Rainier eruption compared to a significant earthquake along the Pacific Northwest. It emphasizes that the consequences of a major 9 Richter earthquake would be far more severe, affecting a wide region from northern California to southern British Columbia. Specific concerns are raised about Seattle's vulnerability due to much of its downtown and Sodo areas being constructed on fill, which could exacerbate damage during such an earthquake.
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"The effects of an eruption of Mt. Rainier, the severe effects, would be much smaller than the effects of the potential 9 Richter earthquake that can happen off the Pacific northwest. That earthquake will affect areas from northern California to southern British Columbia.
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