Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/7177
DC Field | Value | Language |
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dc.contributor.authorall | Di Giulio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Cara, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Milana, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Gaudiosi, I.; Università degli Studi dell’Aquila, DISAT | en |
dc.contributor.editorall | Archuleta, R.; Department of Earth Science, UCSB Santa Barbara | en |
dc.date.accessioned | 2011-11-03T10:13:33Z | en |
dc.date.available | 2011-11-03T10:13:33Z | en |
dc.date.issued | 2011-08-23 | en |
dc.identifier.uri | http://hdl.handle.net/2122/7177 | en |
dc.description.abstract | We present velocity profiles obtained through surface-wave methods in the historical city of L’Aquila (Italy). The city suffered severe damage (VIII-IX EMS intensity) during the April 6th 2009 Mw 6.3 earthquake. The area is characterized by the deep (up to 300-400 meters) basin of the Aterno river valley filled by lacustrine sediments over limestone bedrock. In downtown L'Aquila an outcropping unit basically composed of stiff conglomerates (Breccia) is over-imposed to ancient lacustrine sediments with a possible velocity inversion at a depth ranging from few tens up to one hundred meters. We deployed five 2-D arrays of seismic stations and 1-D array of vertical geophones in the city center. The 2-D arrays recorded ambient noise, whereas the 1-D array recorded signals produced by active sources. Surface-wave dispersion and spatial autocorrelation curves, calculated using array methods, were inverted through a neighborhood algorithm jointly with the microtremor HVNSR ellipticity. We obtain shear-wave velocity profiles (Vs) representative of the southern and northern sector of downtown L'Aquila. The resulting Vs profiles are used to compare the 1-D transfer functions to aftershock data results. We apply a convolution approach evaluating synthetic time-histories in sites where surface stratigraphy is known and comparing them to recorded strong-motion data. | en |
dc.language.iso | English | en |
dc.relation.ispartof | 4th IASPEI / IAEE International Symposium: Effects of Surface Geology on Seismic Motion August 23–26, 2011; University of California Santa Barbara | en |
dc.subject | arrays methods, dispersion curves, L'Aquila | en |
dc.title | THE DEEP STRUCTURE OF THE L'AQUILA BASIN INVESTIGATED USING ARRAY MEASUREMENTS | en |
dc.type | Extended abstract | en |
dc.description.status | Published | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods | en |
dc.description.ConferenceLocation | Earth Research Institute, UCSB, Santa Barbara, CA 93106 | en |
dc.relation.references | Aki, K. [1957], “Space and time spectra of stationary stochastic waves, with special reference to microtremors’’, Bull. Earthq. Res. Inst., Vol. 35, pp. 415–456. Amoroso, S., F. Del Monaco, F. Di Eusebio, P. Monaco, B. Taddei, M. Tallini, F. Totani, and G. Totani [2010], “Campagna di indagini geologiche, geotecniche e geofisiche per lo studio della risposta sismica locale della città dell'Aquila: la stratigrafia dei sondaggi (Giugno - Agosto 2010)’’, CERFIS Report n.1-2010, pp. 1-51, http://www.cerfis.it/it/attivita/microzonazione.html, in Italian. Bardet, J. P., K. Ichii, and C. H. Lin [2000], ‘’EERA, a computer program for equivalent-linear earthquake site response analyses of layered soil deposits, University of Southern California, Department of Civil Engineering’’, http://gees.usc.edu/GEES/ Bettig, B., P. Y. Bard, F. Scherbaum, J. Riepl, F. Cotton, C. Cornou, and D. Hatzfeld [2001], “Analysis of dense array noise measurements using the modified spatial autocorrelation method (SPAC). Application to the Grenoble area’’, Boll. Geof. Teor. Appl., Vol. 42, No. 3-4, pp. 281-304. Capon, J. [1969], “High-resolution frequency-wavenumber spectrum analysis’’, Proc. of the IEEE, Vol. 57, No. 8, pp. 1408–1418. Cardarelli, E., and M. Cercato [2010], “Relazione sulla campagna d'indagine geofisica per lo studio della risposta sismica locale della città dell'Aquila, Prova Crosshole Sondaggi S3-S4’’, DICEA Report, pp. 1-13, http://www.cerfis.it/it/attivita/microzonazione.html, in Italian. Çelebi, M., P. Bazzurro, L. Chiaraluce, P. Clemente, L. Decanini, A. DeSortis, W. Ellsworth, A. Gorini, E. Kalkan, S. Marcucci, G. Milana, F. Mollaioli, M. Olivieri, R. Paolucci, D. Rinaldis, A. Rovelli, F. Sabetta, and C. Stephens [2010], “Recorded Motions of the 6 April 2009 Mw 6.3 L’Aquila, Italy, Earthquake and Implications for Building Structural Damage: Overview’’, Earthquake Spectra, Vol. 26, No. 3, pp. 651-684, doi:10.1193/1.3450317. De Luca, G., S. Marcucci, G. Milana, and T. Sanò [2005], “Evidence of Low-Frequency Amplification in the City of L’Aquila, Central Italy, through a Multidisciplinary Approach Including Strong- and Weak-Motion Data, Ambient Noise, and Numerical Modeling’’, Bull. Seism. Soc. Am., Vol. 95, No. 4, pp. 1469 - 1481. Lacoss, R. T., E. J. Kelly, and M. N. Toksoz [1969], “Estimation of seismic noise structure using arrays’’, Geophysics, Vol. 34, pp. 21-38. Milana, G., R. M. Azzara, E. Bertrand, P. Bordoni, F. Cara, R. Cogliano, G. Cultrera, G. Di Giulio, A.M. Duval and A. Fodarella, et al. [2011], “The contribution of seismic data in microzonation studies for downtown L’Aquila’’, Bull. Earthquake Eng., Vol. 9, No. 3, pp. 741-759, doi: 10.1007/s10518-011-9246-6. Seed, H. B., R. T. Wong, I. M. Idriss, and K.Tokimatsu [1986], “Moduli and damping factors for dynamic analyses of cohesionless soils’’, J. Geotech. Eng. Div., ASCE, Vol. 112 (GT11), pp. 1016-1032. Vucetic, M. and R. Dobry [1991], “Effects of the soil plasticity on ciclyc response’’, J. Geotech. Eng. Div., ASCE, Vol. 117, No.1, pp. 898-907. Wathelet, M. [2008], “An improved neighborhood algorithm: parameter conditions and dynamic scaling’’, Geophys. Res. Lett., Vol. 35, L09301, doi:10.1029/2008GL033256. Wathelet, M., D. Jongmans, M. Ohrnberger, and S.Bonnefoy-Claudet [2008], “Array performances for ambient vibrations on a shallow structure and consequences over Vs inversion’’, J. Seismol., Vol. 12, pp. 1-19. Working Group MS-AQ [2010], “Microzonazione sismica per la ricostruzione dell’area aquilana’’, Ed. Regione Abruzzo- Dipartimento della Protezione Civile, pp. 1-796, in Italian. | en |
dc.description.obiettivoSpecifico | 4.1. Metodologie sismologiche per l'ingegneria sismica | en |
dc.description.fulltext | open | en |
dc.contributor.author | Di Giulio, G. | en |
dc.contributor.author | Cara, F. | en |
dc.contributor.author | Milana, G. | en |
dc.contributor.author | Gaudiosi, I. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Università degli Studi dell’Aquila, DISAT | en |
dc.contributor.editor | Archuleta, R. | en |
dc.contributor.editordepartment | Department of Earth Science, UCSB Santa Barbara | en |
item.openairetype | Extended abstract | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-4097-7102 | - |
crisitem.author.orcid | 0000-0002-1702-563X | - |
crisitem.author.orcid | 0000-0002-2775-4924 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
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ESG_digiulio_1_8.pdf | extended abstract | 1.33 MB | Adobe PDF | View/Open |
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