GNGTS 2021 - Atti del 39° Convegno Nazionale

GNGTS 2021 S essione 1.1 94 along the regional tectonics are captured by geodetic data only after large earthquakes releasing conspicuous co-seismic ground displacements. The cumulation of strain during the interseismic periods is, instead, almost obscured by the huge gravitative sliding, affecting the shallow volcanic horizons at a rate one order of magnitude faster than the tectonic signal. This evidence opens a main issue on the reliability of GPS and DInSAR series in monitoring the increment of the elastic strain along the regional tectonics rooted in the Crust beneath the Mt. Etna volcanic edifice. References Bonforte A., Federico C., Giammanco S., Guglielmino F., Liuzzo M. and Neri M.; 2013: Soil gases and SAR measurements reveal hidden faults on the sliding flank of Mt. Etna (Italy) . Journal of Volcanology and Geothermal Research, 251 , 27–40, http://dx.doi.org/10.1016/j.jvolgeores.2012.08.010. Bonforte A., Guglielmino F., Coltelli M., Ferretti A. and Puglisi G.; 2011: Structural assessment of Mount Etna volcano from Permanent Scatterers analysis . Geochemistry, Geophysics, Geosystems, 12 , Q02002, https://doi.org/10.1029/2010GC003213. Bonforte A., Guglielmino F. and Puglisi G.; 2019: Large dyke intrusion and small eruption: the December 24, 2018 Mt. Etna eruption imaged by Sentinel-1 data . Terra Nova, 31 , 405–412, https :/ /doi.org/10.1111/ ter.12403. Bonforte A. and Puglisi G.; 2006: Dynamics of the eastern flank of Mt. Etna volcano (Italy) investigated by a dense GPS network . Journal of Volcanology and Geothermal Research, 153 , 357–369, doi:10.1016/j. jvolgeores.2005.12.005. Branca S., Coltelli M., De Beni E. and Wijbrans J.; 2008: Geological evolution of Mount Etna volcano (Italy) from earliest products until the first central volcanism (between 500 and 100 ka ago) inferred from geo- chronological and stratigraphic data . International Journal of Earth Sciences, 97 , 135-152, doi 10.1007/ s00531-006-0152-0. Branca S., Coltelli M., Groppelli G. and Lentini F.; 2011: Geological map of Etna volcano, 1:50,000 scale . Italian Journal of Geosciences (Bollettino della Società Geologica Italiana), 130 (3) , 265-291, https:// doi.org/10.3301/IJG.2011.15. Catalano S., Bonforte A., Guglielmino F., Romagnoli G., Tarsia C. and Tortorici, G. (2013). The influence of ero- sional processes on the visibility of Permanent Scatterers Features from SAR remote sensing on Mount Etna (E Sicily) . Geomorphology , 198, 128–137. http://dx.doi.org/10.1016/j.geomorph.2013.05.020. Cassinis R., Cosentino P., Ponzini G.S. and Riuscetti M.; 1970: Contributo all’esplorazione geofisica lungo la costa etnea . Paper presented at Convegno Internazionale sulle acque sotterranee, Palermo 6-8 dicem- bre 1970, 144-154. Civico R., Pucci S., Nappi R., Azzaro R., Villani F., Pantosti D., Cinti F.R., Pizzimenti L., Branca S., Brunori C.A., Caciagli M., Cantarero M., Cucci L., D’Amico S., De Beni E., De Martini P.M., Mariucci M.T., Montone P., Nave R., Ricci T., Sapia V., Smedile A., Tarabusi G., Vallone R. and Venuti A.; 2019: Surface ruptures following the 26 December 2018, Mw 4.9, Mt. Etna earthquake, Sicily (Italy) . Journal of Maps, 15:2 , 831-837, DOI: 10.1080/17445647.2019.1683476. De Beni E., Branca S., Coltelli M., Groppelli G. and Wijbrans J.R.; 2011: 40Ar/39Ar isotopic dating of Etna volcanic succession . International Journal of Geosciences, 130 (3) , 292–305, http://dx.doi.org/10.3301/ IJG.2011.14. De Novellis V., Atzori S., De Luca C., Manzo M., Valerio E., Bonano M., Cardaci C., Castaldo R., Di Bucci D., Manunta M., Onorato G., Pepe S., Solaro G., Tizzani P., Zinno I., Neri M., Lanari R. and Casu F.; 2019: DIn- SAR analysis and analytical modelling of Mt. Etna displacements: the December 2018 volcano-tectonic crisis . Geophysical Research Letters, 46, 5817–5827. DOI: 10.1029/2019GL082467. La Delfa S., Camuti M.G. and Patanè G.; 2011: A multidisciplinary study of the volcanoclastic deposit named ‘‘Chiancone’’, inland and offshore, in the frame of the evolution of volcanism in the Etna area . Physics of the Earth and Planetary Interiors, 186 , 138–153, http://dx.doi.org/10.1016/j.pepi.2011.04.004. Murray J. B., Van Wyk de Vries,B., Pitty,A., Sargent,P. T. H. and Wooller L. K.; 2018: Gravitational sliding of the Mt. Etna massif along a sloping basement . Bulletin of Volcanology, 80 , 40, https://doi.org/10.1007/ s00445-018-1209-1. Palano M.; 2016: Episodic slow slip events and seaward flank motion at Mt. Etna volcano (Italy) . Journal of