GNGTS 2014 - Atti del 33° Convegno Nazionale

36 GNGTS 2014 S essione 1.1 confirming field observations that creep at Etna is a common mechanism of faulting (Rasà et al. , 1996). This implies that quantifying the deficit of seismic moment-rate with respect the geodetic one in terms of spatial distribution and temporal variations is an important task to characterize t��he potential for seismic slip of contiguous fault segments. �� ����� ����� ��� �� ������ �� � ����� In fact, creep may be viewed as a proxy of loading processes on locked fault segments leading to seismic failure during subsequent earthquakes. Acknowledgments. ���� ����� ��� ��������� ���� ������� �������� �� ��� ������� ���������� ��� ��������� ��� This study has benefited from funding provided by the Italian Presidenza del Consiglio dei Ministri - Dipartimento della Protezione Civile (DPC), in the frame of the 2014-2015Agreement with Istituto Nazionale di Geofisica e Vulcanologia - INGV, project V3: “Multi-disciplinary analysis of the relationships between tectonic structures and volcanic activity ‘’. This paper does not necessarily represent DPC official opinion and policies. References Alparone S., Barberi G., Cocina O., Giampiccolo E., Musumeci C. and Patanè D.; 2012: Intrusive mechanism of the 2008–2009 Mt. Etna eruption: constraints by tomographic images and stress tensor analysis . Journal of Volcanology and Geothermal Research, 229-230 , 50-63, doi: 10.1016/j.jvolgeores.2012.04.001. Azzaro R., Bonforte A., Branca S. and Guglielmino F.; 2013: Geometry and kinematics of the fault systems controlling the unstable flank of Etna volcano (Sicily) . Journal of Volcanology and Geothermal Research, 251 , 5-15, doi: 10.1016/j.jvolgeores.2012.10.001. Azzaro R., Branca S., Gwinner K. and Coltelli M.; 2012: The volcano-tectonic map of Etna volcano, 1:100.000 scale: an integrated approach based on a morphotectonic analysis from high-resolution DEM constrained by geologic, active faulting and seismotectonic data . Italian Journal of Geosciences, 131 , 153-170, doi:10.3301/IJG.2011.29. Azzaro R., Mattia M. and Puglisi, G.; 2001: Fault creep and kinematics of the eastern segment of the Pernicana Fault (Mt. Etna, Italy) derived from geodetic observation and their tectonic significance . Tectonophysics, 333 , 401-415, doi:10.1016/S0040-1951(01)00021-X. 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Borgia A., Ferrari L. and Pasquarè G.; 1992: Importance of gravitational spreading in the tectonic and volcanic evolution of Mount Etna . ������� Nature, 357 , 231-235, doi:10.1038/357231a0 Branca S., Coltelli M., Groppelli G. and Lentini F.; 2011: Geological map of Etna volcano, 1:50,000 scale . ������� Italian Journal of Geosciences (Boll. Soc. Geol. It.) 130 (3), 265-291. Brune J. N.; 1968: Seismic moment, seismicity and rate of slip along major fault zones . Journal of Geophysical Research, 73 (2), 777-784, doi:10.1029/JB073i002p00777. Giampiccolo E., D’Amico S., Patanè D. and Gresta S.; 2007: Attenuation and source parameters of shallow microearthquakes at Mt. Etna volcano (Italy) . �������� �� ��� ������������� ������� �� �������� Bulletin of the Seismological Society of America, 97 (1b), 184- 197, doi:10.1785/0120050252. Gruppo Analisi Dati Sismici; 2013: Catalogo dei terremoti della Sicilia Orientale – Calabria Meridionale (1999– 2011) . INGV-Catania (http://www.ct.ingv.it/ufs/analisti/catalogolist.php ). Herring T.A.; 2003: MATLAB Tools for viewing GPS velocities and time series . GPS Solutions, 7 (3), 194-199, doi:10.1007/s10291-003-0068-0. Kostrov B.; 1974: Seismic moment and energy of earthquakes and seismic flow of rock . Izv. Acad. Sci. USSR, Phys. Solid Earth, 1 , 23-40. Neri M., Guglielmino F. and Rust D.; 2007: Flank instability on Mount Etna: Radon, radar interferometry, and geodetic data from the southwestern boundary of the unstable sector . Journal of Geophysical Research, 112 , B04410, doi:10.1029/2006JB004756. Palano M., Aloisi M., Amore M., Bonforte A., Calvagna F., Cantarero M., Consoli O., Consoli S., Guglielmino F., Mattia M., Puglisi B. and Puglisi G.; 2006: Kinematic and strain analyses of the eastern segment of the Pernicana fault (Mt. Etna, Italy) derived from geodetic techniques (1997–2005) . Annals of Geophysics, 49 (4/5), 1105-1117, doi: 10.4401/ag-3103.

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