Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8421
DC Field | Value | Language |
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dc.contributor.authorall | Cultrera, Giovanna; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Azzara, Riccardo Mario; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Cara, Fabrizio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | D'Anna, Roberto; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Di Giulio, Giuseppe; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Giammarinaro, Maria Stella; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | en |
dc.contributor.authorall | Passafiume, Giuseppe; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia | en |
dc.contributor.authorall | Rovelli, Antonio; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Vallone, Paola; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | en |
dc.date.accessioned | 2012-12-06T11:11:23Z | en |
dc.date.available | 2012-12-06T11:11:23Z | en |
dc.date.issued | 2004-08-01 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8421 | en |
dc.description.abstract | The city of Palermo is an appropriate test site where the efficiency of microtremors in predicting ground motion properties during earthquakes can be checked. Palermo is a densely populated city with important historical heritage and was object of previous studies. Areas of local amplification of damage were identified in downtown Palermo using historical macroseismic data. Moreover, aftershocks of the September 6, 2002, earthquake (Mw 5.9, 40 km offshore) provided a dataset of seismograms that quantify spatial variations of ground motion. The availability of more than 2000 boreholes in the city allowed a reconstruction of the 3D structure of surface geology, indicating that all the higher damage zones correspond to sediment-filled valleys. The high variability of the surface geology is mostly due to the presence of two filled river-beds of about 150 m width. In the framework of the SESAME project (Seismic EffectS assessment using Ambient Exctations, funded by the European Union), 90 microtremor measurements were performed across several profiles crossing the soft sediment bodies. The measurement points were intensified close to the valley edges (every 20 m), according to our geological reconstruction. H/V spectral ratio on ambient noise (HVSR) show significant variations along each profile: as soon as the transition stiff to soft is crossed, a typical spectral peak exceeding a factor of 3 in amplitude appears in the HVSR. The peak falls between 1 and 2 Hz and, along each profile, the peak disappears as soon as the other edge of the valley is crossed. These results indicate that microtremors are sensitive to the presence of large impedance contrasts of deep soft soil, at least in the Palermo area, with an important implication: the HVSR method seems to be able to recognize conditions potentially favourable to the occurrence of higher damage even when local geological characters are masked by the urban growth. However, we were not able to establish a quantitative correlation between microtremor properties and ground motion (or damage) amplification. | en |
dc.language.iso | English | en |
dc.relation.ispartof | 13th World Conference on Earthquake Engineering | en |
dc.subject | Palermo, noise measurements, macroseismic intensity, ground motion | en |
dc.title | MICROTREMOR MEASUREMENTS IN PALERMO, ITALY: A COMPARISON WITH MACROSEISMIC INTENSITY AND EARTHQUAKE GROUND MOTION | en |
dc.type | Conference paper | en |
dc.description.status | Published | en |
dc.identifier.URL | http://www.iitk.ac.in/nicee/wcee/article/13_915.pdf | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.04. Ground motion | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk | en |
dc.description.ConferenceLocation | Vancouver, B.C., Canada | en |
dc.relation.references | 1. 2. 3. 4. 5. 6. 7. 8. Guidoboni, E., Mariotti D., Giammarinaro M.S., Rovelli A. “Identification of amplified damage zones in Palermo, Sicily (Italy), during the earthquakes of the last centuries.” Bull. Seism. Soc. Am., 2003; 93: 1649-1669. Azzara R.M., Alletti M., Cultrera G., D’Anna G., D’Anna R., Di Giulio G., Giammarinaro M. S., Passafiume L., Rovelli A., Vallone P. ”Variations of ground motion in the city of Palermo observed during aftershocks of the September 6, 2002, ML 5.6 earthquake.” Proc. 28th General Assembly of EGS,6-11 April 2003 Nice,France. Giammarinaro, M.S., Guidoboni E., Maiorana S., Mariotti D., Rovelli A. “A GIS system as a tool for the integrated analysis of the geological data and seismic effects: historic centre of Palermo.” Proceedings of the Joint Workshop on Remote Sensing and Data Fusion over Urban Areas, Rome, Italy, 2001; IEEE Catalog Number 01EX482, 288-292. Bard P.-Y. “SESAME, Site EffectS assessment using AMbient Excitations”, European Commission Project n° EVG1-CT-2000-00026, 2001-2003. Theodulidis N., Cultrera G., Tento A., Faeh D., Atakan K., Bard P-Y., Panou A., SESAME-Team “Empirical evaluation of the horizontal-to-vertical spectral ratio technique: results from the SESAME Project.” Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, 2004. WP02 Deliverable D01.02 “Controlled Instrumental Specifications”, Final Report of the Instrument Workshop 22-26 October 2001 University of Bergen, 2002; available from the web site: http://sesame- fp5.obs.ujf-grenoble.fr/SES_TechnicalDoc.htm WP02 Deliverable D08.02 “Measurement Guidelines”, Final Report, 2003; available from the web site: http://sesame-fp5.obs.ujf-grenoble.fr/SES_TechnicalDoc.htm WP03 Deliverable D09.03 “Multiplatform H/V Processing Software J-Sesame”, Report, 2003; available from the web site: http://sesame-fp5.obs.ujf-grenoble.fr/SES_TechnicalDoc.htm | en |
dc.description.obiettivoSpecifico | 4.1. Metodologie sismologiche per l'ingegneria sismica | en |
dc.description.fulltext | open | en |
dc.contributor.author | Cultrera, Giovanna | en |
dc.contributor.author | Azzara, Riccardo Mario | en |
dc.contributor.author | Cara, Fabrizio | en |
dc.contributor.author | D'Anna, Roberto | en |
dc.contributor.author | Di Giulio, Giuseppe | en |
dc.contributor.author | Giammarinaro, Maria Stella | en |
dc.contributor.author | Passafiume, Giuseppe | en |
dc.contributor.author | Rovelli, Antonio | en |
dc.contributor.author | Vallone, Paola | 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 | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | en |
item.openairetype | Conference paper | - |
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 Palermo, Palermo, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Dipartimento di Geologia e Geodesia, Università di Palermo, Italy | - |
crisitem.author.orcid | 0000-0002-3335-5655 | - |
crisitem.author.orcid | 0000-0002-0345-9568 | - |
crisitem.author.orcid | 0000-0002-1702-563X | - |
crisitem.author.orcid | 0000-0003-3548-4570 | - |
crisitem.author.orcid | 0000-0002-4097-7102 | - |
crisitem.author.orcid | 0000-0001-9940-9727 | - |
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.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.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
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 | - |
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 | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
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File | Description | Size | Format | |
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13_915.pdf | Proceeding 915 | 2.23 MB | Adobe PDF | View/Open |
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