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"copyrightText": "Washington Geological Survey, 2019, Shear wave database--GIS data: Washington Geological Survey Digital Data Series 17, version 1.2, previously released February, 2016. http://www.dnr.wa.gov/publications/ger_portal_shear_wave_database.zip",
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"Title": "Shear Wave Data",
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"Comments": "This data is a compilation of shear-wave data from studies performed by the Washington Geological Survey, the U.S. Geological Survey, and the Environmental and Engineering Geophysical Society. This dataset contains one feature class providing strong-motion sensor site locations and two related GIS tables that provide S-wave and P-wave velocity data obtained from those sites.Shear wave data are used to quantify and classify the National Earthquake Hazard Reduction Program (NEHRP) site-class data and to construct accurate ShakeMaps in Washington and Oregon. This data is also used to refine ground-motion prediction equations for Pacific Northwest earthquakes.",
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