[Version 4] Latest version, updated to fix errors that were found in the vlm.mat data file. VLM rates across Tutuila Island from December 5, 2015 to August 16, 2022, derived using a redundant multi-primary variant of the PS-InSAR technique. Dataset associated with the published version of the publication "Mapping Vertical Land Motion in Challenging Terrain: Six-Year Trends on Tutuila Island, American Samoa, With PS-InSAR, GPS, Tide Gauge, and Satellite Altimetry Data" by S. A. Huang, J. M. Sauber, and R. Ray. Available at https://doi.org/10.1029/2022GL101363. ampl.mat: Amplitude backscatter averaged from all scenes, multilooked for speckle reduction and resampled to the dataset size. Normalized to 1. latvals.mat: Latitude vector associated with the dataset. lonvals.mat: Longitude vector associated with the dataset. plot_ps_data.m: Matlab script to visualize the data included in all the *.mat files. Requires Computer Vision Toolbox. vlm.mat: Computed VLM rates across Tutuila Island [mm/yr]. All non-PS have an "NaN" value. vlm_se.mat: Standard error of VLM across Tutuila Island [mm/yr]. All non-PS have an "NaN" value.