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September 13, 2018
Are Seattle high rises with welding defects vulnerable to quakes? Q&A with Kopczynski
By LYNN PORTER
Journal Staff Reporter
Journal Staff Reporter
Map information from CKC/USGS
[enlarge]
This map shows how horizontal ground shaking in an earthquake varies across the region. The numbers here are figures from USGS on horizontal ground shaking as a percentage of gravity during the 6.8 Nisqually earthquake.
A New York Times story in June focused on San Francisco high rises that are potentially vulnerable in a big earthquake due to a major defect in certain older steel-frame buildings.
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