A team of structural engineers is planning to shake things up with an artificial earthquake this month to study its effects on a two-story building. The lab-generated temblor will mimic the 1994 Northridge quake in Los Angeles. "This is the first time a full building of cold-formed steel frame has ever been tested in this way, so even the small things we're learning could have a huge impact," said Benjamin Schafer, who is leading the project.

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