Seafloor terraces around ~50 m depth are abundant beneath Puget Sound. These terraces have been attributed to a sea-level lowstand ca. 11 ka. Depths to the terraces across upper plate faults in Puget Sound can be used as a record for tectonic deformation since that time.   The data consist of bathymetric and seismic reflection data from Puget Sound, Washington, USA. They have been interpreted to show an upward offset in bathymetric terraces across the Seattle fault zone. This data repository includes the following files necessary to reproduce these results: basemap.pdf: Bathymetric and topographic map of the study area (central Puget Sound, USA) showing the location of bathymetric profiles and fault zones used in the study. bathymetric_datasets.xlsx: Spreadsheet describing all public bathymetric datasets used in the study. profiles.zip: Text files of bathymetric profiles used in the study. Each profile consists of a distance and depth extracted from the bathymetric files listed in dataset 2. picks.xlsx: Spreadsheet that identifies each bathymetric profile, the x-y coordinate location and measured depth for each profile's bathymetric terrace and the uncertainties and propagated error for each depth. images.pdf:  PDF document showing locations and images for the two seismic reflection profiles used in the study, plus explanations for each image. See the Methods section for a description of the collection of these profiles.