High-frequency maximum observable shaking map of Italy from fault sources

Handle URI:
http://hdl.handle.net/10754/594293
Title:
High-frequency maximum observable shaking map of Italy from fault sources
Authors:
Zonno, Gaetano; Basili, Roberto; Meroni, Fabrizio; Musacchio, Gemma; Mai, Paul Martin ( 0000-0002-9744-4964 ) ; Valensise, Gianluca
Abstract:
We present a strategy for obtaining fault-based maximum observable shaking (MOS) maps, which represent an innovative concept for assessing deterministic seismic ground motion at a regional scale. Our approach uses the fault sources supplied for Italy by the Database of Individual Seismogenic Sources, and particularly by its composite seismogenic sources (CSS), a spatially continuous simplified 3-D representation of a fault system. For each CSS, we consider the associated Typical Fault, i. e., the portion of the corresponding CSS that can generate the maximum credible earthquake. We then compute the high-frequency (1-50 Hz) ground shaking for a rupture model derived from its associated maximum credible earthquake. As the Typical Fault floats within its CSS to occupy all possible positions of the rupture, the high-frequency shaking is updated in the area surrounding the fault, and the maximum from that scenario is extracted and displayed on a map. The final high-frequency MOS map of Italy is then obtained by merging 8,859 individual scenario-simulations, from which the ground shaking parameters have been extracted. To explore the internal consistency of our calculations and validate the results of the procedure we compare our results (1) with predictions based on the Next Generation Attenuation ground-motion equations for an earthquake of M w 7.1, (2) with the predictions of the official Italian seismic hazard map, and (3) with macroseismic intensities included in the DBMI04 Italian database. We then examine the uncertainties and analyse the variability of ground motion for different fault geometries and slip distributions. © 2012 Springer Science+Business Media B.V.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Zonno G, Basili R, Meroni F, Musacchio G, Martin Mai P, et al. (2012) High-frequency maximum observable shaking map of Italy from fault sources. Bull Earthquake Eng 10: 1075–1107. Available: http://dx.doi.org/10.1007/s10518-012-9346-y.
Publisher:
Springer Nature
Journal:
Bulletin of Earthquake Engineering
Issue Date:
17-Mar-2012
DOI:
10.1007/s10518-012-9346-y
Type:
Article
ISSN:
1570-761X; 1573-1456
Sponsors:
The authors thank Salvatore Barba for fruitful discussions in setting up the project. RB and GV thank the other members of the DISS Working Group for their continuous dedication in keeping the DISS updated. Suggestions by Dario Slejko, Angela Sarao, and an anonymous reviewer were very helpful in improving the paper. This study benefited from funding by the Italian Presidenza del Consiglio dei Ministri, Dipartimento della Protezione Civile (DPC), in the framework of the 2007-2009 Agreement with Istituto Nazionale di Geofisica e Vulcanologia-DPC-INGV, Project S1.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZonno, Gaetanoen
dc.contributor.authorBasili, Robertoen
dc.contributor.authorMeroni, Fabrizioen
dc.contributor.authorMusacchio, Gemmaen
dc.contributor.authorMai, Paul Martinen
dc.contributor.authorValensise, Gianlucaen
dc.date.accessioned2016-01-19T14:45:23Zen
dc.date.available2016-01-19T14:45:23Zen
dc.date.issued2012-03-17en
dc.identifier.citationZonno G, Basili R, Meroni F, Musacchio G, Martin Mai P, et al. (2012) High-frequency maximum observable shaking map of Italy from fault sources. Bull Earthquake Eng 10: 1075–1107. Available: http://dx.doi.org/10.1007/s10518-012-9346-y.en
dc.identifier.issn1570-761Xen
dc.identifier.issn1573-1456en
dc.identifier.doi10.1007/s10518-012-9346-yen
dc.identifier.urihttp://hdl.handle.net/10754/594293en
dc.description.abstractWe present a strategy for obtaining fault-based maximum observable shaking (MOS) maps, which represent an innovative concept for assessing deterministic seismic ground motion at a regional scale. Our approach uses the fault sources supplied for Italy by the Database of Individual Seismogenic Sources, and particularly by its composite seismogenic sources (CSS), a spatially continuous simplified 3-D representation of a fault system. For each CSS, we consider the associated Typical Fault, i. e., the portion of the corresponding CSS that can generate the maximum credible earthquake. We then compute the high-frequency (1-50 Hz) ground shaking for a rupture model derived from its associated maximum credible earthquake. As the Typical Fault floats within its CSS to occupy all possible positions of the rupture, the high-frequency shaking is updated in the area surrounding the fault, and the maximum from that scenario is extracted and displayed on a map. The final high-frequency MOS map of Italy is then obtained by merging 8,859 individual scenario-simulations, from which the ground shaking parameters have been extracted. To explore the internal consistency of our calculations and validate the results of the procedure we compare our results (1) with predictions based on the Next Generation Attenuation ground-motion equations for an earthquake of M w 7.1, (2) with the predictions of the official Italian seismic hazard map, and (3) with macroseismic intensities included in the DBMI04 Italian database. We then examine the uncertainties and analyse the variability of ground motion for different fault geometries and slip distributions. © 2012 Springer Science+Business Media B.V.en
dc.description.sponsorshipThe authors thank Salvatore Barba for fruitful discussions in setting up the project. RB and GV thank the other members of the DISS Working Group for their continuous dedication in keeping the DISS updated. Suggestions by Dario Slejko, Angela Sarao, and an anonymous reviewer were very helpful in improving the paper. This study benefited from funding by the Italian Presidenza del Consiglio dei Ministri, Dipartimento della Protezione Civile (DPC), in the framework of the 2007-2009 Agreement with Istituto Nazionale di Geofisica e Vulcanologia-DPC-INGV, Project S1.en
dc.publisherSpringer Natureen
dc.subjectEarthquakeen
dc.subjectGround shakingen
dc.subjectItalyen
dc.subjectSeismic hazarden
dc.subjectSeismogenic sourceen
dc.titleHigh-frequency maximum observable shaking map of Italy from fault sourcesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalBulletin of Earthquake Engineeringen
dc.contributor.institutionIstituto Nazionale di Geofisica e Vulcanologia, Via Bassini, 15, 20133 Milan, Italyen
dc.contributor.institutionIstituto Nazionale di Geofisica e Vulcanologia, Via Vigna Murata, 605, 00143 Roma, Italyen
kaust.authorMai, Paul Martinen
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