GNGTS 2019 - Atti del 38° Convegno Nazionale

GNGTS 2019 S essione 1.1 105 resources is ongoing would be particularly useful, since a detailed image of the faults together with maps of scattering and absorption to detect presence of heterogeneities and fluids becomes crucial in such cases. References Aki K. and Chouet B . ; 1975: Origin of coda waves: Source, attenuation, and scattering effects. J. Geoph. Res. 80, 3322–3342 . Brozzetti F., Cirillo D., de Nardis R., Cardinali M., Lavecchia G., Orecchio B., Presti D., and Totaro C.; 2017: Newly identified active faults in the Pollino seismic gap, Southern Italy, and their seismotectonic significance . J. Struct. Geol, 94, 13–31. Calvet M. and Margerin L.; 2013: Lapse-time dependence of coda Q: Anisotropic multiple-scattering models and application to the Pyrenees . Bull. Seism. Soc. Am. 103, 1993–2010. Cheloni D., D’Agostino N., Selvaggi G., Avallone A., Fornaro G., Giuliani R., Reale D., Sansosti E., and Tizzani P.; 2017: Aseismic transient during the 2010–2014 seismic swarm: evidence for longer recurrence of m 6.5 earthquakes in the Pollino gap (Southern Italy)? . Scientific Reports, 7(1), 576. Del Pezzo E., Ibanez J., Prudencio J., Bianco F., De Siena L.; 2016: Absorption and scattering 2-D volcano images from numerically calculated space-weighting functions. Geoph. J. Int. 206, 742– 756. Got J.-L., Fréchet J. and Klein F.W.;1994: Deep fault plane geometry inferred from multiplet relative relocation beneath the south flank of Kilauea. J. Geoph Res.: Solid Earth, 99(B8), 15,375–15,386. Herrmann R. B.;2013 Computer programs in seismology: An evolving tool for instruction and research. Seism. Res. Lett., 84(6), 1081–1088. Napolitano F., Gervasi A., La Rocca M., Guerra I., and Scarpa R.,2018: Site effects in the Pollino region from the hvsr and polarization of seismic noise and earthquakes . Bull. Seism. Soc. Am., 108(1), 309–321. Napolitano F., De Siena L., Gervasi A., Guerra I., Scarpa R., and La Rocca M.; Scattering and absorption imaging of a highly fractured fluid-filled seismogenetic volume in a region of slow deformation . accepted for publication on Geoscience Frontiers (Ms.Ref.No.:GSF-D-19-00069R2) Passarelli L., Hainzl S., Cesca S., Maccaferri F., Mucciarelli M., Roessler D., Corbi F., Dahm T., and Rivalta E.; 2015: Aseismic transient driving the swarm-like seismic sequence in the Pollino range, Southern Italy . Geoph. J. Int., 201(3), 1553–1567. Piana Agostinetti N., and Amato A.;2009: Moho depth and V p /V s ratio in peninsular Italy from teleseismic receiver functions . J. Geoph. Res. 114, B06303. Snoke J.;1984: A program for focal mechanism determination by combined use of polarity and Sv-P amplitude ratio data . Earthquake notes, 55, 15. Snoke J.; 1989: Earthquake mechanisms . Encyclopedia of Geophysics (de James, ed.). Totaro C., Seeber L., Waldhauser F., Steckler M., Gervasi A., Guerra I., Orecchio B., and Presti D.; 2015: An intense earthquake swarm in the southernmost apennines: Fault architecture from high-resolution hypocenters and focal mechanisms. Bull. Seism. Soc. Am., 105(6), 3121–3128. Fig. 3 - Relative scattering and absorption map of the Pollino area at frequency 12 Hz. High Scattering-HighAbsorption pattern (red) spreads all around the fault system. Historical and recent earthquakes are shown by orange and yellow stars, respectively. The blue pattern (High Scattering-Low Absorption) represents the Lucanian Apennines.