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The Transamerica Pyramid in San Francisco was engineered to withstand earthquakes. It swayed more than a foot but was undamaged in the magnitude 7.1 1989 Loma Prieta quake. |
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Photo credit: U.S. Geological Survey |
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Article: All Stressed Out | Sidebar One: Learning from Earthquakes | Sidebar Two: Quake Prediction | Sidebar Three: Build Smart | ANIMATION |
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