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Written by: 9/29/2011 9:49 PM
UPI reports that the Seismological Society of America said yesterday that the 2 mile complex sedimentary basin underlying Seattle can amplify earthquake shaking in a way not well modeled. Existing models assume more uniform rock substrates – ours will take more study to properly model.
Recent measurements by UW seismologists have highlighted the complicated structures underground, including a low velocity zone just west and below downtown.
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