Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/15845
DC FieldValueLanguage
dc.date.accessioned2022-12-27T11:49:08Z-
dc.date.available2022-12-27T11:49:08Z-
dc.date.issued2022-
dc.identifier.urihttp://hdl.handle.net/2122/15845-
dc.description.abstractRupture directivity and its potential frequency dependence is an open issue within the seismological community, especially for small‐to‐moderate events. Here, we provide a statistical overview based on empirical evidence of seismological observations, thanks to the large amount of high‐quality seismic recordings (more than 30,000 waveforms) from Central Italy, which represents an excellent and almost unique natural laboratory of normal faulting earthquakes in the magnitude range between 3.4 and 6.5 within the time frame 2008–2018. In order to detect an anisotropic distribution of ground motion amplitudes due to the rupture directivity, we fit the smoothed Fourier Amplitude Spectra (FAS) cleared of source‐, site‐ and path‐effects. According to our criteria, about 36% of the analyzed events (162 out of 456) are directive and the distribution of rupture direction is aligned with the strikes of the major faults of the Central Apennines. We find that the directivity is a band‐limited phenomenon whose width may extend up to five times the corner frequency. The results of this research provide useful insights to parameterize directivity, to be explicitly implemented in future ground motion modeling and scenario predictions.en_US
dc.language.isoEnglishen_US
dc.publisher.nameWiley-AGUen_US
dc.relation.ispartofJournal of Geophysical Research: Solid Earthen_US
dc.relation.ispartofseries6/127 (2022)en_US
dc.titleEmpirical Evidence of Frequency‐Dependent Directivity Effects From Small‐To‐Moderate Normal Fault Earthquakes in Central Italyen_US
dc.typearticleen
dc.description.statusPublisheden_US
dc.description.pagenumbere2021JB023498en_US
dc.identifier.doi10.1029/2021JB023498en_US
dc.description.obiettivoSpecifico5T. Sismologia, geofisica e geologia per l'ingegneria sismicaen_US
dc.description.journalTypeJCR Journalen_US
dc.relation.issn0148-0227en_US
dc.contributor.authorColavitti, Leonardo-
dc.contributor.authorLanzano, Giovanni-
dc.contributor.authorSgobba, Sara-
dc.contributor.authorPacor, Francesca-
dc.contributor.authorGallovič, František-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italiaen_US
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia-
crisitem.author.deptDipartimento di Scienze Fisiche, Università di Napoli ‘‘Federico II’’; Department of Geophysics, Charles University, Prague-
crisitem.author.orcid0000-0002-9364-7676-
crisitem.author.orcid000-0001-7947-4281-
crisitem.author.orcid0000-0002-5669-8650-
crisitem.author.orcid0000-0001-5745-0414-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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