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Synthetic tsunami waveform catalogs with kinematic constraints

2017-07-21Journal article Restricted access
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dc.contributor.authorBaptista, Maria Ana Carvalho Viana
dc.contributor.authorMiranda, Jorge Miguel
dc.contributor.authorMatias, Luis
dc.contributor.authorOmira, Rachid
dc.date.accessioned2017-09-26T10:34:30Z
dc.date.available2017-09-26T10:34:30Z
dc.date.issued2017-07-21
dc.description.abstractIn this study we present a comprehensive methodology to produce a synthetic tsunami waveform catalogue in the northeast Atlantic, east of the Azores islands. The method uses a synthetic earthquake catalogue compatible with plate kinematic constraints of the area. We use it to assess the tsunami hazard from the transcurrent boundary located between Iberia and the Azores, whose western part is known as the Gloria Fault. This study focuses only on earthquake-generated tsunamis. Moreover, we assume that the time and space distribution of the seismic events is known. To do this, we compute a synthetic earthquake catalogue including all fault parameters needed to characterize the seafloor deformation covering the time span of 20 000 years, which we consider long enough to ensure the representability of earthquake generation on this segment of the plate boundary. The computed time and space rupture distributions are made compatible with global kinematic plate models. We use the tsunami empirical Green's functions to efficiently compute the synthetic tsunami waveforms for the dataset of coastal locations, thus providing the basis for tsunami impact characterization. We present the results in the form of offshore wave heights for all coastal points in the dataset. Our results focus on the northeast Atlantic basin, showing that earthquake-induced tsunamis in the transcurrent segment of the Azores-Gibraltar plate boundary pose a minor threat to coastal areas north of Portugal and beyond the Strait of Gibraltar. However, in Morocco, the Azores, and the Madeira islands, we can expect wave heights between 0.6 and 0.8 m, leading to precautionary evacuation of coastal areas. The advantages of the method are its easy application to other regions and the low computation effort needed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBAPTISTA, Maria Ana [et al] - Synthetic tsunami waveform catalogs with kinematic constraints. Natural Hazards and Earth System Sciences. ISSN 1561-8633. Vol. 17, N.º 7 (2017), pp. 1253-1265pt_PT
dc.identifier.doi10.5194/nhess-17-1253-2017pt_PT
dc.identifier.issn1561-8633
dc.identifier.urihttp://hdl.handle.net/10400.21/7387
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCopernicus Gesellschaft MBHpt_PT
dc.relation.publisherversionhttps://www.nat-hazards-earth-syst-sci.net/17/1253/2017/nhess-17-1253-2017.pdfpt_PT
dc.subjectContinental Lithospherept_PT
dc.subjectThermal Structurept_PT
dc.subjectScaling Relationspt_PT
dc.subjectEarthquakept_PT
dc.subjectMagnitudept_PT
dc.subjectFaultpt_PT
dc.subjectSeismicitypt_PT
dc.subjectTectonicspt_PT
dc.subjectBoundarypt_PT
dc.subjectHazardspt_PT
dc.titleSynthetic tsunami waveform catalogs with kinematic constraintspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1265pt_PT
oaire.citation.issue7pt_PT
oaire.citation.startPage1253pt_PT
oaire.citation.titleNatural Hazards and Earth System Sciencespt_PT
oaire.citation.volume17pt_PT
person.familyNamede Carvalho Viana Baptista
person.familyNameOmira
person.givenNameMARIA ANA
person.givenNameRachid
person.identifierhttps://scholar.google.pt/citations?user=ApQ9Bp4AAAAJ&hl=pt-PT
person.identifier972486
person.identifier.ciencia-idCF12-1EE3-F49B
person.identifier.ciencia-idC116-66FF-BB9B
person.identifier.orcid0000-0002-6381-703X
person.identifier.orcid0000-0002-6198-7588
person.identifier.ridN-2533-2013
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=7102934075
person.identifier.scopus-author-id34971883700
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationa01dd185-70d9-4a8e-9c8c-1418e555ef00
relation.isAuthorOfPublicationc57e1a9c-7628-49a3-98f9-4465f1ba5e5a
relation.isAuthorOfPublication.latestForDiscoverya01dd185-70d9-4a8e-9c8c-1418e555ef00

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