Study: Seattle Crumbles In Massive Earthquake »
Posted By Aidenag 1 year, 8 months ago in Science & TechnologyWhat happens when a magnitude 9 earthquake rocks the ocean floor in the Pacific Northwest? According to the first-ever 3d simulations of such a "megathrust" earthquake, it could well bring Seattle high rises crumbling to the ground, as the earth shakes as much as 3 feet per second. Cities like from Los Angeles to Seattle could be swamped
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Aidenag
Photographer by day, news junkie by night. My main areas of interest are politics and the environment.
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Isoparm1 year, 8 months ago
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Doesn't the seismic energy focus as the waves move up the hill? As the surface area shrinks as the wave nears the top of the hill, the amplitude must increase due to laws of conservation of energy. The hill focuses the energy. And if it is at a resonant frequency, who knows? Don't mean to be alarmist, just thinking.
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Aidenag1 year, 8 months ago
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It does, but the composition of the hills(at least here) are such that it dampens quakes. In 2001, i barely felt the 6.4 quale we had. People just a mile north or south of me on the bottom of the hill had major damage. and downtown seattle, where its all low lying loose soil, was most heavily hit.
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cowboygrandpa1 year, 8 months ago
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I've been in a few quakes out here in CA. The worst one for me was the one that was centered by Upland CA. I lived up in Mt Baldy and thought the boulders were going to come down on my cabin. My elevation was 5100 ft. It was about a 6.1 if I remember right. Large rocks fell onto the roadways and trees were falling in the forrest. Frightening.
I can't imagine a 9.0. Although one of my seargents in the army was in the massive quake they had in Alaska. From what he told me he couldn't even walk during the quake.
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