caa a22 4500 445846860 CHVBK 20180317145401.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10518-011-9301-3 doi (NATIONALLICENCE)springer-10.1007/s10518-011-9301-3 The Aterno valley strong-motion array: seismic characterization and determination of subsoil model [Elektronische Daten] [G. Lanzo, M. Tallini, G. Milana, G. Di Capua, F. Del Monaco, A. Pagliaroli, S. Peppoloni] The paper focuses on the strong motion array deployed in the upper Aterno River Valley, in the immediate outskirts north-west of the town of L'Aquila, which is part of the Italian Strong Motion Network operated by the Department of Civil Protection. The array is composed of six accelerometric stations located along a cross section of the valley. The importance of this array relies on the fact that a large amount of high-quality records were obtained during the 2009 L'Aquila seismic sequence, from both the mainshock and several aftershocks. These data are especially important to investigate site effects in sediment-filled valleys during moderate earthquakes in epicentral area because well-documented observational studies are very limited in the literature. However, the main drawback for the study of site effects in the Aterno valley is the lack of a detailed knowledge of the geometry of the valley, soil layering and dynamic properties of materials. The main motivation for this study stems from the need to provide a reliable subsoil model of the valley coupled with high-quality strong motion data. Based on the above, in the framework of S4 project, a major effort was undertaken to get a trustworthy cross section of the valley by an ad hoc investigation, comprising geological and geotechnical surveys as well as an extensive geophysical campaign, characterized by both active and passive measurements. These results were complemented by additional geological and geotechnical data available in the literature. By merging all the information acquired, a 2D subsoil model of the transversal section of the upper Aterno valley has been produced. The valley is characterised by an asymmetric shape with a shallower rock basement at the western edge of the valley that deepens at the valley centre. Moreover, based on the results of geophysical tests, representative Vs values were assigned to the different lithologic units forming the alluvial deposits filling the valley. Shear wave velocity is a fundamental parameter for ground response studies and it is also effective in classifying the accelerometric station from a seismic point of view. The 2D model may be therefore, considered a benchmark model for future studies of site effects. It will offer the possibility to examine site effects with a complex underlying geology and to validate the results of numerical simulations of site response analyses with the numerous observations from earthquake recordings, both for weak and strong ground motion conditions. Springer Science+Business Media B.V., 2011 L'Aquila earthquake nationallicence Aterno valley nationallicence Strong-motion array nationallicence Seismic characterization nationallicence Microtremors nationallicence Subsoil model nationallicence Lanzo G. Dipartimento di Ingegneria Strutturale e Geotecnica, Sapienza Università di Roma, Rome, Italy aut Tallini M. Dipartimento di Ingegneria delle Strutture, delle Acque e del Terreno, Università dell'Aquila, L'Aquila, Italy aut Milana G. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut Di Capua G. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut Del Monaco F. Dipartimento di Ingegneria delle Strutture, delle Acque e del Terreno, Università dell'Aquila, L'Aquila, Italy aut Pagliaroli A. CNR-IGAG, Rome, Italy aut Peppoloni S. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut Bulletin of Earthquake Engineering Springer Netherlands 9/6(2011-12-01), 1855-1875 1570-761X 9:6<1855 2011 9 10518 https://doi.org/10.1007/s10518-011-9301-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-011-9301-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lanzo G. Dipartimento di Ingegneria Strutturale e Geotecnica, Sapienza Università di Roma, Rome, Italy aut NATIONALLICENCE 700 1- Tallini M. Dipartimento di Ingegneria delle Strutture, delle Acque e del Terreno, Università dell'Aquila, L'Aquila, Italy aut NATIONALLICENCE 700 1- Milana G. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut NATIONALLICENCE 700 1- Di Capua G. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut NATIONALLICENCE 700 1- Del Monaco F. Dipartimento di Ingegneria delle Strutture, delle Acque e del Terreno, Università dell'Aquila, L'Aquila, Italy aut NATIONALLICENCE 700 1- Pagliaroli A. CNR-IGAG, Rome, Italy aut NATIONALLICENCE 700 1- Peppoloni S. Istituto Nazionale di Geofisica e Vulcanologia, INGV, Rome, Italy aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/6(2011-12-01), 1855-1875 1570-761X 9:6<1855 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer