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Gridded earthquake ground motions for the 2023 ASCE/SEI 41 Standard

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: August 25, 2025 | Last Modified: 20250630
The multi-period BSE-1E and BSE-2E response spectra for the 2023 ASCE 41 Standard are derived from the downloadable data files. For each site class, 5% in 50 year uniform hazard spectral accelerations and 20% in 50 year uniform hazard spectral accelerations are provided for 22 spectral periods.

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