GNGTS 2013 - Atti del 32° Convegno Nazionale

The analyzed seismic activity also highlights the activation of rock volumes with a high de- gree of mechanical anisotropy, where variously oriented seismogenic structures can be active. References Adelfio, G., Chiodi, M., De Luca, L., Luzio, D., Vitale, M.; 2006. Southern-Tyrrhenian seismicity in space-time-magnitude domain . Annals of Geophysics 49 (6), 1245-1257. Boccaletti, M., Nicolich, R., Tortorici, L.; 1990. New data and hypothesis on the development of the Tyrrhenian Basin. Paleogeo . Paleoclim. Paleoecol., 77 , 15-40. Facenna, C., Davy, P., Brun, J.P., Funiciello, R., Giardini, D., Mattei, M., Nalpas, T.; 1996. The dynamics of back-arc extension: an experimental approach to the opening of the Tyrrhenian Sea . Geophysical Journal International 126 , 781-795. Finetti, I., Del Ben, A.; 1986. Geophysical study of the Tyrrhenian opening . Bollettino di Geofisica Teorica ed Applicata 28 , 75-155. Giunta, G., Nigro, F., Renda, P.; 2000a. 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Earth Planetary Science Letter 213 , 97-112. Neri G., Barberi G., Oliva G., Orecchio B.; 2005 a. Spatial variation of seismogenic stress orientations in Sicily, South Italy . Physical Earth Planetary International 148 , 175-191. Nigro F.; 1998. Neotectonic events and kinematic of rhegmatic-like basins in Sicily and adjacent areas. Implications for a structural model of the Tyrrhenian opening . Ann. Soc. Geol. Poloniae 68 , 1-21. Patacca E., Sartori R., Scandone P.; 1990. Tyrrhenian Basin and Appenninic Arcs: kinematics rotations since Late Tortonian Times . Memorie Società Geologica Italiana 45 , 425-451. Pepe F., Bertotti R., Marsella E.; 2000. Rifted margin formation in the South Tyrrnenian Sea: a high-resolution seismic profile across the North Sicily passive continental margin . Tectonics 19 , 241-257. Pondrelli S., Morelli A., Ekström G.; 2004. European-Mediterranean Regional Centroid Moment Tensor catalog: solutions for years 2001 and 2002 . Phys. Earth Planet. Int., 145 , 127-147. Reasenberg P.A., Oppenheimer D.; 1985. FPFIT, FPPLOT and FPPAGE: Fortran computer programs for calculating and displaying earthquake fault-plain solutions . U.S. Geological Survey Open-file Rep, 85-739. Renda P., Tavarnelli E., Tramutoli M., Gueguen E., 2000. Neogene deformations of Northern Sicily, and their implications for the geodynamics of the Southern Tyrrhenian Sea margin . Memorie Società Geologica Italiana 55 , 53-59. Scandone, P.; 1979. Origin of the Tyrrhenian Sea and Calabrian Arc . Bollettino Società Geologica Italiana 98 , 27-34. Waldhauser F.; 2001. HypoDD: a program to compute double difference hypocenter locations . U.S. Geological Survey Open-file, Menlo Park, California report, 01-113. 157 GNGTS 2013 S essione 1.2