GNGTS 2017 - 36° Convegno Nazionale

GNGTS 2017 S essione 1.2 117 meandering pattern without any erosive processes. The described features are consistent with recent uplift of the area north of the scarp. Finally, the location of the scarp and the related fault geometry are compatible with the historic M S 6.0 1614 A.D. Tsaishi earthquake, which attests to the seismic hazard of the area. Based on field and geophysical data, we classified the TF as an active fault-propagation fold and we also recognized very recent growing activity associated with a major, underlying active fault. As a result, our work also represents an important contribution to the seismic hazard assessment of the RB, densely-populated area. Acknowledgements This study has been carried out in the framework of the NATO project SfP G4934 “Georgia Hydropower Security”, of the International Lithosphere Program - Task Force II, and of the European Space Agency project n. 32309 “Active tectonics and seismic hazard of southwest Caucasus by remotely-sensed and seismological data”. Seismic sections were kindly made available by the State Agency for Regulation of Oil and Gas Resources of Georgia (SAROGR). References Alania, V., Chabukiani, A., Chagelishvili, R., Enukidze, O., Gogrichiani, K., Razmadze, A., Tsereteli, N., 2016. Growth structures, piggyback basins and growth strata of Georgian part of Kura foreland fold and thrust belt: implication for Late Alpine kinematic evolution. In: Sosson, M., Stephenson, R., Adamia, Sh. (Eds.), Tectonic Evolution of the Eastern Black Sea and Caucasus. Geological Society of London, Special Publications No. 428: p. 810 http://dx.doi.org/10.1144/SP428.5 (first published on October 27, 2015). Reilinger, R.E.,McClusky, S.C., Vernant, P., Lawrence, S., Ergintav, S., Cakmak, R., Ozener, H., Kadirov, F., Guliev, I., Stepanian, R., Nadariya, M., Hahubia, G., Mahmoud, S., Sakr, K., Arrajehi, A., Paradissis, D., Al-Aydrus, A., Prilepin, M., Guseva, T., Evren, E., Dmirotsa, A., Filikov, S.V., Gomez, F., Al-Ghazzi, R., Karam, G., 2006. GPS constraints on continental deformation in the Africa-Arabia-Eurasia continental collision zone and implications for the dynamics of plate interactions. Sosson, M., Rolland, Y., Danelian, T., Muller, C., Melkonyan, R., Adamia, S., Kangarli, T., Avagyan, A., Galoyan, G., 2010. Subductions, obduction and collision in the Lesser Caucasus (Armenia Azerbaijan, Georgia), new insights. In: Sosson, M., Kaymakci, N., Stephanson, R., Bergarat, F., Storatchenoko, V. (Eds.), Sedimentary Basin TectonicsFrom the Black Sea and Caucasus to the Arabian Platform. Geological Society of London Special Publication 340, pp. 329–352. Tibaldi, A., Alania, V., Bonali, F.L., Enukidze, O., Tsereteli, N., Kvavadze, N., Varazanashvili, O., 2017a. Active inversion tectonics, simple shear folding and back-thrusting at Rioni Basin, Georgia. J. Struct. Geol. 96, 35–53. Tibaldi, A., Russo, E., Bonali, F. L., Alania, V., Chabukiani, A., Enukidze, O., & Tsereteli, N., 2017b. 3-D anatomy of an active fault-propagation fold: A multidisciplinary case study from Tsaishi, western Caucasus (Georgia). Tectonophysics. Tsereteli, N., Tibaldi, A., Alania, V., Gventsadse, A., Enukidze, O., Varazanashvili, O., Müller, B.I.R., 2016. Active tectonics of central-western Caucasus, Georgia. Tectonophysics Varazanashvili, O., Tsereteli, N., Tsereteli, E., 2011. Historical Earthquakes in Georgia (up to 1900): Source Analysis and Catalogue Compilation. Monograph. M. Javakhishvili Tbilisi State University, Georgia. Contesto sismotettonico e sorgenti sismogeniche della sequenza sismica di Amatrice-Visso-Norcia del 2016 L. Bonini 1,2* , F.E. Maesano 2 , R. Basili 2 , P. Burrato 2 , V. Cannelli 2 , M.M.C. Carafa 2 , U. Fracassi 2 , V. Kastelic 2 , D. Melini 2 , G. Tarabusi 2 , M.M. Tiberti 2 , P. Vannoli 2 , G. Valensise 2 1 Dipartimento di Matematica e Geoscienze, Università di Trieste 2 Istituto Nazionale di Geofisica e Vulcanologia Il 24 agosto 2016, il terremoto di M w 6.0 localizzato nei pressi di Amatrice (RI) ha segnato l’inizio di un’intensa sequenza sismica che ha colpito l’Appennino centro-settentrionale. Tale evento, infatti, è stato seguito poche settimane più tardi prima da un terremoto di M w 5.9 (26 ottobre 2016) localizzato nella zona di Visso (MC), e, successivamente, da un evento di M w 6.5, il più energetico di tutta la sequenza, registrato il 30 ottobre 2016 con epicentro nei pressi di Norcia (PG).