[TERRASIGNA National Ground Motion Monitoring: Romania between 2015 - 2020 Our team has grouped in a book a collection of ground displacement rate maps, illustrating the power of satellite radar interferometry (InSAR) to detect and monitor subtle ground displacements associated with various phenomena: natural or anthropogenic hazards related motions like subsidence/uplift (due to fluid dynamics, clay shrink/swell, mining activity, tunneling, water extraction, etc); infrastructure deformations (e.g. water reservoirs, dams, bridges and other buildings).More than 1500 Sentinel-1 A/B datasets acquired by the European Space Agency were processed by our experts to produce the first ever ground displacement map of Romania. With this result, and by measuring around 21 million targets over Romania, covering approximately 200.]