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On the source of the 8 May 1939 Azores earthquake - tsunami observations and numerical modelling

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dc.contributor.authorReis, Cláudia
dc.contributor.authorOmira, Rachid
dc.contributor.authorMatias, Luis
dc.contributor.authorBaptista, Maria Ana Carvalho Viana
dc.date.accessioned2018-01-26T13:36:47Z
dc.date.available2018-01-26T13:36:47Z
dc.date.issued2017
dc.description.abstractOn 8 May 1939, an earthquake (Ms7.1) occurred near the Azores archipelago, with an epicentre located close to the western end of the Gloria fault. Previous studies present different epicentre locations spreading over a large area, and two different types of focal mechanisms. Given these uncertainties, the interpretation of the seismological information in a complex tectonic environment between the Gloria Fault and the Terceira Ridge is a matter of debate. The event caused a small tsunami recorded in the Azores Islands. In this study, we use the tsunami observations and tsunami numerical modelling to select the earthquake fault rupture that best fits the tsunami observations. We consider the different focal mechanism solutions, perform tsunami numerical modelling, and compute synthetic tsunami waveforms at the tide gauge locations. We find that an earthquake caused by a low-angle dipping fault with dominant strike-slip movement generates a tsunami that reproduces well the record at Ponta Delgada tide gauge. Finally, in areas where earthquakes are rare, the study of ancient earthquakes must use all information available, namely tsunami observations and mareograph data.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationREIS, C.; [et al] – On the source of the 8 May 1939 Azores earthquake - tsunami observations and numerical modelling. Geomatics Natural Hazards & Risk. ISSN 1947-5705. Vol. 8, N.º 2 (2017), pp. 328-347pt_PT
dc.identifier.doi10.1080/19475705.2016.1218944pt_PT
dc.identifier.issn1947-5705
dc.identifier.issn1947-5713
dc.identifier.urihttp://hdl.handle.net/10400.21/7982
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherTaylor & Francispt_PT
dc.relationFCT-ANR-GEONUM - MAN-NAN/0122/2012pt_PT
dc.relationAssessment, STrategy And Risk Reduction for Tsunamis in Europe
dc.relation.publisherversionhttp://www.tandfonline.com/doi/pdf/10.1080/19475705.2016.1218944?needAccess=truept_PT
dc.subject1939 earthquakept_PT
dc.subjectTsunamipt_PT
dc.subjectAzorespt_PT
dc.titleOn the source of the 8 May 1939 Azores earthquake - tsunami observations and numerical modellingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssessment, STrategy And Risk Reduction for Tsunamis in Europe
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/603839/EU
oaire.citation.endPage347pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage328pt_PT
oaire.citation.titleGeomatics, Natural Hazards and Riskpt_PT
oaire.citation.volume8pt_PT
oaire.fundingStreamFP7
person.familyNameReis
person.familyNameOmira
person.familyNameMatias
person.familyNamede Carvalho Viana Baptista
person.givenNameCláudia
person.givenNameRachid
person.givenNameLuis
person.givenNameMARIA ANA
person.identifier972486
person.identifier693396
person.identifierhttps://scholar.google.pt/citations?user=ApQ9Bp4AAAAJ&hl=pt-PT
person.identifier.ciencia-id8017-0F17-1C7A
person.identifier.ciencia-idC116-66FF-BB9B
person.identifier.ciencia-id6418-129D-A73E
person.identifier.ciencia-idCF12-1EE3-F49B
person.identifier.orcid0000-0003-3940-2739
person.identifier.orcid0000-0002-6198-7588
person.identifier.orcid0000-0002-8086-4874
person.identifier.orcid0000-0002-6381-703X
person.identifier.ridAHE-4327-2022
person.identifier.ridN-2533-2013
person.identifier.ridK-7347-2012
person.identifier.scopus-author-id34971883700
person.identifier.scopus-author-id6701795172
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=7102934075
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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