FILE--In this Sept. 27, 2018, file photo, people walk through main plaza entryway to the closed Salesforce Transit Center in San Francisco. As two of the city's most vaunted buildings sink or crack, an earthquake study released Thursday, Oct. 4, recommended re-inspecting dozens of high-rises and beefing up construction codes for the growing crop of skyscrapers in the booming city. (AP Photo/Eric Risberg, file)
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