Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7390
DC FieldValueLanguage
dc.contributor.authorallDi Luccio, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallPino, N. A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
dc.date.accessioned2012-01-19T07:30:20Zen
dc.date.available2012-01-19T07:30:20Zen
dc.date.issued2011-09en
dc.identifier.urihttp://hdl.handle.net/2122/7390en
dc.description.abstractTo understand the source complexity of the April 6, 2009 L’Aquila earthquake (MW = 6.3), a quick seismological analysis is done on the waveforms of the mainshock and the larger aftershock that occurred on April 7, 2009. We prove that a simple waveform analysis gives useful insights into the source complexity, as soon as the seismograms are available after the earthquake occurrence, whereas the reconstruction of the rupture dynamics through the application of sophisticated techniques requires a definitely longer time. We analyzed the seismograms recorded at broadband and strong motion stations and provided firm constraints on rupture kinematics, slip distribution, and static surface deformation, also discriminating the actual fault plane. We found that two distinct rupture patches associated with different fracture propagation directions and possibly occurring on distinct rupture planes, characterized the source kinematics of the April 6 events. An initial updip propagation successively proceeds toward SE, possibly on a different plane. We also show that the same processing, applied to the April 7, 2009 aftershock (MW = 5.6), allows us to obtain useful information also in the case of lower magnitude events. Smaller events with similar location and source mechanism as the mainshock, to be used as Green’s empirical function, occur in the days before or within tens of minutes to a few hours after the mainshock. These quick, preliminary analyses can provide useful constraints for more refined studies, such as inversion of data for imaging the rupture evolution and the slip distribution on the fault plane. We suggest implementing these analyses for real, automatic or semi-automatic, investigations.en
dc.language.isoEnglishen
dc.publisher.nameIstituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, Trieste, Italyen
dc.relation.ispartofBollettino di Geofisica Teorica ed Applicataen
dc.relation.ispartofseries3/52 (2011)en
dc.subjectL'Aquila 2009 earthquakeen
dc.subjectdirectivityen
dc.subjectseismic sourceen
dc.subjectseismogram analysisen
dc.titleElementary seismological analysis applied to the April 6, 2009 L'Aquila mainshock and its larger aftershocken
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber389-406en
dc.identifier.URLhttp://www2.ogs.trieste.it/bgta/pdf/bgta0030_DILUCCIO.pdfen
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneousen
dc.identifier.doi10.4430/bgta0030en
dc.description.obiettivoSpecifico1.1. TTC - Monitoraggio sismico del territorio nazionaleen
dc.description.obiettivoSpecifico3.1. Fisica dei terremotien
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.contributor.authorDi Luccio, F.en
dc.contributor.authorPino, N. A.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OV, Napoli, Italia-
crisitem.author.orcid0000-0002-9924-3736-
crisitem.author.orcid0000-0003-1092-7152-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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