Below is the measured vertical ground-motion rate for the center of 51 US metro areas, from NASA OPERA / Sentinel-1 satellite radar (InSAR). Negative means the ground is sinking; positive means it is rising. Click a city for detail, or check any specific address.
SibFly reads NASA OPERA DISP-S1 displacement data (processed from Copernicus Sentinel-1 radar) at a 30-meter grid, fits the multi-year trend at each cell, and reports millimeters per year with an uncertainty range. It is a screening estimate from space, not an engineering or survey-grade determination. Developers and AI agents can pull the same data from the API ($0.40 per covered report, misses free).
Coverage expands region by region. © SIB Scientific.