Giant Shake Table Helps Design Quake-Proof California Homes

When the Loma Prieta earthquake struck San Francisco in 1989, it gutted the Marina neighborhood. While part of that was due to liquefaction effects caused by the area’s underlying landfill construction, the problem was exasperated by the area’s multiunit homes, which typically either had parking or shops built into the first floor. That’s great for home values, but not so much of the building’s structural integrity during a tremor, as you can see below.

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