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The U.S. Geological Survey Global Vs30 Mosaic

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 10:14 PM | Dataset Last Updated: August 22, 2025 at 12:00 AM
This data release provides the global mosaic of the time-averaged shear-wave velocity in the upper 30 m (Vs30) described by Heath and others (2020). This map uses the Wald and Allen (2007) slope-based Vs30 as the basemap, and regional take precedence where they are available.

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