The Umpi solution for early assessment is based on interferometric monitoring, a technique that uses satellite images, available starting from 1994 and analyzed with modern techniques of interferometry and image processing.
The SAR Interferometry technique can be used for monitoring both the ground surface deformations over a wide area (thousands of Km2) and the structures and infrastructures movements with sub-centimeter precision.
It is possible to analyze long series of historical data and to extract extremely accurate displacement measurements based on reference points called Persistent Scattered (PS), which correspond to objects on the ground that have a stable behavior over time (railway lines, roads, monuments, etc.).
The output consist of average displacement velocities maps and deformations time series.