caa a22 4500 445846925 CHVBK 20180317145401.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10518-011-9243-9 doi (NATIONALLICENCE)springer-10.1007/s10518-011-9243-9 Local variability of the ground shaking during the 2009 L'Aquila earthquake (April 6, 2009—Mw 6.3): the case study of Onna and Monticchio villages [Elektronische Daten] [G. Di Giulio, S. Marzorati, F. Bergamaschi, P. Bordoni, F. Cara, E. D'Alema, C. Ladina, M. Massa] The 2009 Mw 6.3 L'Aquila event caused extensive damage in the city of L'Aquila and in some small towns in its vicinity. The most severe damage was recognized SE of L'Aquila town along the Aterno river valley. Although building vulnerability and near-source effects are strongly responsible for the high level of destruction, site effects have been invoked to explain the damage heterogeneities and the similarities between the 2009 macroseismic field with the intensities of historical earthquakes. The small village of Onna is settled on quaternary alluvium and suffered during the L'Aquila event an extremely heavy damage in the masonry structures with intensity IX-X on the Mercalli-Cancani-Sieberg (MCS) scale. The village of Monticchio, far less than 1.3km from Onna, is mostly situated on Mesozoic limestone and suffered a smaller level of damaging (VI MCS). In the present paper, we analyze the aftershock recordings at seismic stations deployed in a small area of the middle-Aterno valley including Onna and Monticchio. The aim is to investigate local amplification effects caused by the near-surface geology. Because the seismological stations are close together, vulnerability and near-source effects are assumed to be constant. The waveform analysis shows that the ground motion at Onna is systematically characterized by large high-frequency content. The frequency resonance is varying from 2 to 3Hz and it is related to alluvial sediments with a thickness of about 40m that overlay a stiffer Pleistocene substrate. The ground motion recordings of Onna are well reproduced by the predictive equation for the Italian territory. Springer Science+Business Media B.V., 2011 L'Aquila 2009 earthquake nationallicence Site effects nationallicence Onna nationallicence Seismic microzoning nationallicence Ground motion prediction equations nationallicence Di Giulio G. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut Marzorati S. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut Bergamaschi F. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Uguccione della Faggiuola 3, 52100, Arezzo, Italy aut Bordoni P. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut Cara F. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut D'Alema E. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut Ladina C. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut Massa M. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut Bulletin of Earthquake Engineering Springer Netherlands 9/3(2011-06-01), 783-807 1570-761X 9:3<783 2011 9 10518 https://doi.org/10.1007/s10518-011-9243-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10518-011-9243-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Di Giulio G. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut NATIONALLICENCE 700 1- Marzorati S. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Bergamaschi F. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Uguccione della Faggiuola 3, 52100, Arezzo, Italy aut NATIONALLICENCE 700 1- Bordoni P. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut NATIONALLICENCE 700 1- Cara F. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via di Vigna Murata 605, 00143, Rome, Italy aut NATIONALLICENCE 700 1- D'Alema E. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Ladina C. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut NATIONALLICENCE 700 1- Massa M. Istituto Nazionale di Geofisica e Vulcanologia (INGV), Via Bassini 15, 20133, Milan, Italy aut NATIONALLICENCE 773 0- Bulletin of Earthquake Engineering Springer Netherlands 9/3(2011-06-01), 783-807 1570-761X 9:3<783 2011 9 10518 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer