GNGTS 2016 - Atti del 35° Convegno Nazionale

322 GNGTS 2016 S essione 2.1 navigation errors (Filizzola et al. , 2004), and/or know spurious effects (e.g. cold spatial average effect, Aliano et al. , 2008, Genzano et al., 2009) have to be discarded; Spatial persistence: it is not isolated being part of a group of TIR anomalies covering at least 150km 2 within an area of 1×1°; Temporal persistence: previous conditions (i.e. the existence of a group of TIR anomalies covering at least 150km 2 within an area of 1×1° around x , y ) are satisfied at least one more time in the 7 days preceding/following t . In order to identify Significant Sequences of Rn Anomalies (SSRA) possibly related to an impending earthquake a relative intensity of ⊗ Rn ( r , t ) ≥ 2 requested together with at least one repetition in the 7 days preceding/following t . Conclusion. The anomalies relating to Rn data acquired in the three sites, are almost never overlapped, and this could be caused by the considerable distance between the three sites, and then, by the different distance of the deformation in place. Instead, there is a good match between the thermal and Rn Cazzaso anomalies, in the period March-April 2009. Unfortunately the acquisition in Cazzaso and Prato site, has undergone short breaks within the period considered. Cazzaso data, for example, are missing from January to May 2012. Acknowledgements. The authors are grateful to Prato Ricerche - Istituto Toscano, the CAI Section of Prato, the Osservatorio Geofisico di Novara and OGS for the availability of radon data. References Aliano C., Corrado R., Filizzola C., Genzano N., Pergola N., Tramutoli V.; 2008: Robust TIR satellite techniques for monitoring earthquake active regions: limits, main achievements and perspectives . Ann. Geophys. 51 , 303–317. Filizzola C., Pergola N., Pietrapertosa C., Tramutoli V.; 2004: Robust satellite techniques for seismically active areas monitoring: a sensitivity analysis on September 7, 1999 Athens’s earthquake . Phys Chem Earth 29 , 517–527. doi:10.1016/j.pce. 2003.11.019. Genzano N., Aliano C., Corrado R., Filizzola C., Lisi M., Mazzeo G., Paciello R., Pergola N., Tramutoli V.; 2009: RST analysis of MSG-SEVIRI TIR radiances at the time of the Abruzzo 6 April 2009 earthquake . Nat. Hazards Earth Syst Sci 9 , 2073–2084. Petrini R., Italiano F., Riggio A., Slejko F. F., Santulin M., Buccianti A., Bonfanti P. and Slejko D.; 2012: Coupling geochemical and geophysical signatures to constrain strain changes along thrust faults.Boll.Geof. Teor. Appl., 53 , 113-134, doi: 10.4430/bgta0017. Riggio A., Sancin S., Gentile G. F., Zennaro P., Belletti R.; 1999: Misure di radon in Friuli e confronto con la sismicità . In: OGS. Atti del 18° Convegno Nazionale GNGTS. /01.06. Riggio A., Santulin M., Tamaro A.; 2013: Radon as Seismic Precursor in the Framework of the S3 Project . Atti del 32° Convegno Nazionale GNGTS, Trieste, 19-21 novembre 2013, pp.123-130. Riggio A., Santulin M.; 2010: Analysis of variations of the radon concentration behaviour in soil and in water and correlation with the b-value . In: (a cura di): Slejko D, Riggio A, Riassunti Estesi delle Comunicazioni del 29° Convegno GNGTS. pp. 123-125, ISBN: 978-88-902101-5-0, Prato, 26-28 ottobre 201. Tramutoli V., Jakowski N., Pulinets S., Romanov A., Filizzola C., Shagimuratov I., Pergola N., Ouzounov D., Papadopulos G., Genzano N., Lisi M.,Alparslan E.,WilkenV., RomanovA., Zakharenkova I., Paciello R., Coviello I., Romano G., Tsybulia K., Inan .S, Parrot M.; 2014: From PRE-EARTQUAKES to EQUOS: how to exploit multi- parametric observations within a novel system for time-dependent assessment of seismic hazard (TDASH) in a pre-operational Civil Protection context . Prooceding of Second European Conference on Earthquake Engineering and Seismology (2ECEES) Turkey 24-29 August, 2014. Tramutoli V., Corrado R., Filizzola C., Genzano N., Lisi M., Paciello R., Pergola N.; 2015: One year of RST based satellite thermal monitoring over two Italian seismic areas . Boll. Di Geofis. Teor. ed Appl. doi:10.4430/ bgta0150.