How can satellite EO can help understand seismic hazards?


Scientists involved in seismic risk management use satellite EO to support mitigation activities designed to assess risk. This requires gathering geo-information for several aspects: the parameters of the seismic sources, knowledge of historical and instrumental rates of seismicity, the measurement of current deformation rates, the partitioning of strain across different faults, paleo-seismological data from faults, and the improvement of tectonic models in seismogenic areas. Satellite EO is a valuable tool to support this research as it can provide wide area information about active faults (for instance using Optical imagery) as well as precise terrain deformation measurements (e.g. using radar interferometry). Satellite images may be collected over a given fault for several decades, and this can be done for faults anywhere in the world.