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An Updated Vs30 Map for California with Geologic and Topographic Constraints


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Thompson, E.M., 2018, An Updated Vs30 Map for California with Geologic and Topographic Constraints: U.S. Geological Survey data release,


This data release provides a map of the time-averaged shear-wave velocity in the upper 30 m (Vs30) for California using the method described by Thompson and others (2014). There are two adjustments to the algorithm described by Thompson and others (2014), which is built on the geology-based Vs30 map by Wills and Clahan (2006). In this data release, we use the Wills and others (2015) updated geology-based Vs30 map. The second change is that we have adjusted the kriging procedure so that measured Vs30 values do not affect the predictions across distinctly different geologic units. Data Description There are two files: California_vs30_Wills15_hybrid_7p5c.tif – This file contains the mean Vs30. California_vs30_Wills15_hybrid_7p5c_sd.tif [...]


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DOI doi:10.5066/F7JQ108S

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