GNGTS 2018 - 37° Convegno Nazionale

148 GNGTS 2018 S essione 1.1 inherited from previous tectonic regimes (e.g., Jurassic and Miocene faults and late Miocene- Pliocene thrusts) and the distribution of the 2016-2018 seismic events suggest that some of the preexisting faults may have been reactivated in the present day extensional regime. Such evidences, and the related faults segmentation, also have strong implications for a potential review of the seismic hazard in the area. In conclusion, we believe that an added value of RETRACE-3D is represented by the development of a multi -expertise coordinated working group, formally organized, in which the different teams operate in a synergic way to gain altogether a shared result. Being this activity developed in the frame of the civil protection field of interest, it has also a societal value. Moreover, the large number of involved investigators from different research institutes as well as the publication of main results on mainstream platforms makes the project objective much more easily accessible also for civil protection purposes, representing the outcome of a large and qualified community idea. Finally, the framework of integrated activities and the internal organization realized by RETRACE-3D also represents a “ready-to-go tool” that could be easily exported for the achievement of similar objectives in others areas. Acknowledgments. RETRACE-3D is a project developed in the frame of a formal agreement among the Civil Protection Department and some of its Competence Centers (for details, see the project website www.retrace3d.it ). This collaboration was promoted by the scientists during the first days of the Central Italy seismic emergency, in 2016. Carlo Doglioni is acknowledged for having conceived the first idea of the project. Authors are involved in the tasks: 2.1 Seismic interpretation, 2.2 Preliminary 3D model Time domain, 2.3 Velocity model, 2.4 Depth conversion, and 2.5 Grav-Mag modeling. References Bigi S., Casero P., Chiarabba C., and Di Bucci D.; 2013: Contrasting surface active faults and deep seismogenic sources unveiled by the 2009 L’Aquila earthquake sequence (Italy). Terra Nova, 25(1), 21–29. https://doi. org/10.1111/ter.12000. Buttinelli M., Pezzo G., Valoroso L., De Gori P. and Chiarabba C.; 2018: Tectonics inversions, fault segmentation and triggering mechanisms in the central Apennines normal fault system: insights from high-resolution velocity models . Tectonics, 37. https://doi.org/10.1029/2018TC005053. Chiaraluce L., Di Stefano R., Tinti E., Scognamiglio L., Michele M., Casarotti E., Cattaneo M., De Gori P., Chiarabba C., Monachesi G., Lombardi A., Valoroso L., Latorre D., Marzorati S.; 2017: The 2016 Central Italy Seismic Sequence: A First Look at the Mainshocks, Aftershocks, and Source Models. Seismological Research Letters ; 88 (3): 757–771. doi: https://doi.org/10.1785/0220160221. Ghisetti F., Barchi M., Bally A.W., Moretti I. and Vezzani L.; 1993: Conflicting balanced structural sections across the Central Apennines (Italy): problems and implications. In Generation, accumulation and production of Europe’s hydrocarbons III (pp. 219-231). Springer, Berlin, Heidelberg. Lavecchia G., Adinolfi G.M., de Nardis, R., Ferrarini F., Cirillo D., Brozzetti F., De Matteis R., Festa G. and Zollo A.; 2017: Multidisciplinary inferences on a newly recognized active east-dipping extensional system in central Italy. Terra Nova, 29(1), 77-89. Pizzi A., Di Domenica A., Gallovič F., Luzi L. and Puglia R.; 2017: Fault segmentation as constraint to the occurrence of the main shocks of the 2016 Central Italy seismic sequence. Tectonics, 36, 2370–2387. https://doi. org/10.1002/2017TC004652. Porreca M., Minelli G., Ercoli M., BrobiaA., Mancinelli P., Cruciani F., Giorgetti C., Carboni F., Mirabella F., Cavinato G., Cannata A., Pauselli C. and Cannata, A. ; 2018: Seismic Reflection Profiles and Subsurface Geology of the Area Interested by the 2016–2017 Earthquake Sequence (Central Italy). Tectonics, 37(4), 1116-1137. https://doi. org/10.1002/2017TC004915. Scisciani V., Agostini S., Calamita F., Pace P., Cilli A., Giori I. and Paltrinieri W.; 2014: Positive inversion tectonics in foreland fold-and-thrust belts: A reappraisal of the Umbria-Marche northern Apennines (Central Italy) by integrating geological and geophysical data. Tectonophysics, 637, 218–237. https://doi.org/10.1016/j. tecto.2014.10.010. Scognamiglio L., Tinti E., Casarotti E., Pucci S., Villani F., Cocco M., Magnoni F., Michelini A. and Dreger D.; 2018: Complex Fault Geometry and Rupture Dynamics of the MW 6.5, 30 October 2016, Central Italy Earthquake. Journal of Geophysical Research: Solid Earth, 123, 2943–2964. https://doi.org/10.1002/2018JB015603.