GNGTS 2016 - Atti del 35° Convegno Nazionale

GNGTS 2016 S essione 2.2 335 (landslides, liquefaction, surface faulting and fracturing); definition of the subsoil model for the numerical simulation; Task 4: geophysical characterization of the seismically homogeneous microzones. Above all MASW and microtremor investigations will be used to evaluate the Vs vs. depth profile; Task 5: seismic monitoring and microtremor recordings; Task 6: 1D and 2D numerical simulations; Task 7: elaboration of the seismically homogeneous microzones map characterized by the amplification factors obtained from the 1D and 2D numerical simulation. Considering that the geological setting of Santa Lucia is placed in a ridge characterized by outcropping of arenaceous-pelitic lithotypes as bedrock, we will analyse its seismic site response also through 2D numerical simulation to estimate the possible contribution of the topographic effect. Conclusions. As regards the SeismicMicrozonation (Level 3) of Santa Lucia andCapitignano the main topics to be explored will be: i) ��� ����� ������ ��� ��������� �� �������������� ������� ��� ��� ���������� ����� �� ��� for Santa Lucia, the influence of fracture/fault network and the weathering cover of the terrigenous bedrock and the topographic effect on the seismic site response; ii) ��� ������������ ��� ��������� �� ��� ������� ���������� ��� ��� ������������������ for Capitignano, the influence of the bedrock morphology and the seismostratigraphy of the Quaternary deposits on the seismic site response and the liquefaction hazard evaluation and the mapping of the fault zones and fault setbacks of the presumed active Capitignano fault; iii) �� ���� ��� ����� �� ���� ����������� ��� ������� ������ ���������� �� ��� ���������� in both the areas we will investigate the Seismic Hazard evaluation of the earthquake prone landslides and the seismostratigraphy characterization through specific geophysical investigations (above all microtremor recordings and MASW). References Blumetti A.M.; 1995: Neotectonic investigations and evidence of paleosismicity in the epicentral area of the January- February 1703, Central Italy, earthquakes . In: Serva L., Slemmons B. (Eds.), Perspectives in Paleosismology, Ass. of Engineering Geologists., Spec. Publ. 6 :83-100. Boncio P., Lavecchia G., Milana G., Rozzi B.; 2004: Seismogenesis in Central Apennines, Italy: an integrated analysis of minor earthquake sequences and structural data in the Amatrice-Campotosto area . Annals of Geophysics, 47 (6), 1723-1742. Boncio P., Lavecchia G., Pace B.; 2004: Defining a model of 3D seismogenic sources for Seismic Hazard Assessment applications: The case of central Apennines (Italy) . Journal of Seismology, 8 , 407-425. Chiarini E., La Posta E., Cifelli F., D’Ambrogi C., Eulilli V., Ferri F., Marino M., Mattei M., Puzzilli L.M.; 2014: A multidisciplinary approach to the study of the Montereale Basin (Central Apennines, Italy) . Rend. Fis. Acc. Lincei, 25: 177, doi 10.1080/16445647.2016.1239229. Civico R., Blumetti A.M., Chiarini E., Cinti F.M., La Posta E., Papasodaro F., Sapia V., Baldo M., Lollino G., Pantosti D., 2016: Active traces of the Capitignano and San Giovanni faults (Abruzzi Apennines, Italy) . Journal of Maps, doi 10.1080/16445647.2016.1239229. Galadini F., Messina P.; 2004: Early-Middle Pleistocene eastward migration of the Abruzzi Apennine (central Italy) extensional domain . Journal of Geodynamics, 37 , 57-81. Galadini F., Messina P., Sposato A.; 2000: Tettonica quaternaria nell’Appennino centrale e caratterizzazione dell’attività di faglie nel Pleistocene superiore-Olocene . In: Galadini F., Meletti C., Rebez A. (Eds.) Le ricerche del GNDT nel campo della pericolosità sismica (1996-1999), CNR-GNDC, 157-169. Gruppo di Lavoro MS–AQ; 2010: Microzonazione sismica per la ricostruzione dell’area aquilana. Regione Abruzzo – Dipartimento della Protezione Civile , L’Aquila, 3 vol., Cd-rom. Gruppo di Lavoro INGV sul terremoto di Amatrice; 2016: Secondo rapporto di sintesi sul Terremoto di Amatrice Ml 6.0 del 24 Agosto 2016 (Italia Centrale) , doi: 10.5281/zenodo.154400. Lavecchia G., Ferrarini F., Brozzetti F., De Nardis R., Boncio P., Chiaraluce L.; 2012: From surface geology to aftershock analysis: Constraints on the geometry of the L’Aquila 2009 seismogenic fault system . Ital. J. Geosci. (Boll. Soc. Geol. It.), 131 (3), 330-347.