A multi-sensors analysis of RST-based thermal anomalies in the case of the Abruzzo earthquake

Space-time anomalies in Thermal InfraRed (TIR) satellite imagery, from weeks to days, before severe earthquakes are reported in several studies. Among the various genetic models, the increase of green-house gas (such as CO₂, CH₄, etc.) emission rates, have been suggested to explain the appearance of anomalous TIR signal transients in some relation with the place and time of earthquake occurrence. Among the others, a Robust Satellite data analysis Technique (RST) was proposed to investigate possible relations between earthquake occurrence and space-time fluctuations of Earth´s emitted TIR radiation observed from satellite. In this paper, independent RST analysis performed over the Italian peninsula at the time of the Abruzzo earthquake (April 6, 2009; M_L~5.8) using different satellite system (MSG/SEVIRI, NOAA/AVHRR and EOS/MODIS) are presented and compared.