Strong-motion observations from the OGS temporary seismic network during the 2012 Emilia sequence in northern Italy.
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| Title: | Strong-motion observations from the OGS temporary seismic network during the 2012 Emilia sequence in northern Italy. |
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| Authors: | Barnaba, Carla1 cbarnaba@inogs.it, Laurenzano, Giovanna1, Moratto, Luca1, Sugan, Monica1, Vuan, Alessandro1, Priolo, Enrico1, Romanelli, Marco1, Bartolomeo, Paolo1 |
| Source: | Bulletin of Earthquake Engineering. Oct2014, Vol. 12 Issue 5, p2165-2178. 14p. |
| Subject Terms: | *Earthquakes, *Mohorovicic discontinuity, *Seismic networks, *Shear waves, Via Emilia (Italy) |
| Geographic Terms: | Po River Valley (Italy), Italy |
| Abstract: | Strong-motion data consisting of peak ground acceleration and velocity and 5 % damped response spectra are presented for 46 earthquakes of the Emilia seismic sequence which occurred in the Po Plain (northern Italy) in 2012. The data were recorded by the OGS temporary network installed close to the town of Ferrara following the main shock of May 20, 2012. Ground-motion peak parameters and spectral responses are compared with the ground-motion prediction equation (GMPE) of Bindi et al. (Bull Earthq Eng 9:1899-1920, ) for soft soils and reverse faults. Peak ground accelerations are in general in good agreement with those predicted by GMPE, while predicted peak ground velocities underestimate the observed data, especially for stronger events at more distant stations. The response spectra follow the trend in peak ground velocities, with observed values higher than predicted values at longer periods. This behavior has been interpreted as a site effect due to the deep soft alluvial cover of the Po Plain, which promotes ground motion characterized by a large low-frequency spectral content that is not yet well modeled by the Italian GMPE. A peculiar behavior was shown by the event occurring on June 6, 04:08:33 UTC, $$\hbox {M}=4.5$$ , located at the eastern edge of the Po Plain, which produced peak ground accelerations exceeding three times the values estimated by attenuation laws. Such a great discrepancy could be related to post-critically reflected S-waves and multiples from the Moho (SmSM). [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 97942641 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Strong-motion observations from the OGS temporary seismic network during the 2012 Emilia sequence in northern Italy. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Barnaba%2C+Carla%22">Barnaba, Carla</searchLink><relatesTo>1</relatesTo><i> cbarnaba@inogs.it</i><br /><searchLink fieldCode="AR" term="%22Laurenzano%2C+Giovanna%22">Laurenzano, Giovanna</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Moratto%2C+Luca%22">Moratto, Luca</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sugan%2C+Monica%22">Sugan, Monica</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Vuan%2C+Alessandro%22">Vuan, Alessandro</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Priolo%2C+Enrico%22">Priolo, Enrico</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Romanelli%2C+Marco%22">Romanelli, Marco</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bartolomeo%2C+Paolo%22">Bartolomeo, Paolo</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Bulletin+of+Earthquake+Engineering%22">Bulletin of Earthquake Engineering</searchLink>. Oct2014, Vol. 12 Issue 5, p2165-2178. 14p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Earthquakes%22">Earthquakes</searchLink><br />*<searchLink fieldCode="DE" term="%22Mohorovicic+discontinuity%22">Mohorovicic discontinuity</searchLink><br />*<searchLink fieldCode="DE" term="%22Seismic+networks%22">Seismic networks</searchLink><br />*<searchLink fieldCode="DE" term="%22Shear+waves%22">Shear waves</searchLink><br /><searchLink fieldCode="DE" term="%22Via+Emilia+%28Italy%29%22">Via Emilia (Italy)</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Po+River+Valley+%28Italy%29%22">Po River Valley (Italy)</searchLink><br /><searchLink fieldCode="DE" term="%22Italy%22">Italy</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Strong-motion data consisting of peak ground acceleration and velocity and 5 % damped response spectra are presented for 46 earthquakes of the Emilia seismic sequence which occurred in the Po Plain (northern Italy) in 2012. The data were recorded by the OGS temporary network installed close to the town of Ferrara following the main shock of May 20, 2012. Ground-motion peak parameters and spectral responses are compared with the ground-motion prediction equation (GMPE) of Bindi et al. (Bull Earthq Eng 9:1899-1920, ) for soft soils and reverse faults. Peak ground accelerations are in general in good agreement with those predicted by GMPE, while predicted peak ground velocities underestimate the observed data, especially for stronger events at more distant stations. The response spectra follow the trend in peak ground velocities, with observed values higher than predicted values at longer periods. This behavior has been interpreted as a site effect due to the deep soft alluvial cover of the Po Plain, which promotes ground motion characterized by a large low-frequency spectral content that is not yet well modeled by the Italian GMPE. A peculiar behavior was shown by the event occurring on June 6, 04:08:33 UTC, $$\hbox {M}=4.5$$ , located at the eastern edge of the Po Plain, which produced peak ground accelerations exceeding three times the values estimated by attenuation laws. Such a great discrepancy could be related to post-critically reflected S-waves and multiples from the Moho (SmSM). [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s10518-014-9610-4 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 2165 Subjects: – SubjectFull: Earthquakes Type: general – SubjectFull: Mohorovicic discontinuity Type: general – SubjectFull: Seismic networks Type: general – SubjectFull: Shear waves Type: general – SubjectFull: Via Emilia (Italy) Type: general – SubjectFull: Po River Valley (Italy) Type: general – SubjectFull: Italy Type: general Titles: – TitleFull: Strong-motion observations from the OGS temporary seismic network during the 2012 Emilia sequence in northern Italy. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Barnaba, Carla – PersonEntity: Name: NameFull: Laurenzano, Giovanna – PersonEntity: Name: NameFull: Moratto, Luca – PersonEntity: Name: NameFull: Sugan, Monica – PersonEntity: Name: NameFull: Vuan, Alessandro – PersonEntity: Name: NameFull: Priolo, Enrico – PersonEntity: Name: NameFull: Romanelli, Marco – PersonEntity: Name: NameFull: Bartolomeo, Paolo IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 1570761X Numbering: – Type: volume Value: 12 – Type: issue Value: 5 Titles: – TitleFull: Bulletin of Earthquake Engineering Type: main |
| ResultId | 1 |
