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Reanalysis of the 1761 transatlantic tsunami

2019-02-13Journal article Restricted access
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dc.contributor.authorWronna, Martin
dc.contributor.authorBaptista, Maria Ana Carvalho Viana
dc.contributor.authorMIRANDA, JORGE MIGUEL
dc.date.accessioned2019-05-07T11:14:20Z
dc.date.available2019-05-07T11:14:20Z
dc.date.issued2019-02-13
dc.description.abstractThe segment of the Africa-Eurasia plate boundary between the Gloria Fault and the Strait of Gibraltar has been the setting of significant tsunamigenic earthquakes. However, their precise location and rupture mechanism remain poorly understood. The investigation of each event contributes to a better understanding of the structure of this diffuse plate boundary and ultimately leads to a better evaluation of the seismic and tsunami hazard. The 31 March 1761 event is one of the few known transatlantic tsunamis. Macroseismic data and tsunami travel times were used in previous studies to assess its source area. However, no one discussed the geological source of this event. In this study, we present a reappraisal of tsunami data to show that the observations data set is compatible with a geological source close to Coral Patch and Ampere seamounts. We constrain the rupture mechanism with plate kinematics and the tectonic setting of the area. This study favours the hypothesis that the 1761 event occurred in the southwest of the likely location of the 1 November 1755 earthquake in a slow deforming compressive regime driven by the dextral transpressive collision between Africa and Eurasia.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationWRONNA, Martin; BAPTISTA, Maria Ana; MIRANDA, Jorge Miguel – Reanalysis of the 1761 transatlantic tsunami. Natural Hazards and Earth System Sciences. ISSN 1561-8633. Vol. 19, N.º 2 (2019), pp. 337-352pt_PT
dc.identifier.doi10.5194/nhess-19-337-2019pt_PT
dc.identifier.issn1561-8633
dc.identifier.urihttp://hdl.handle.net/10400.21/9946
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCopernicus Publicationspt_PT
dc.relationPD/BD/135070/2017 - FCTpt_PT
dc.relation.publisherversionhttps://www.nat-hazards-earth-syst-sci.net/19/337/2019/nhess-19-337-2019.pdfpt_PT
dc.subjectReappraisal of tsunami datapt_PT
dc.subjectGeological sourcept_PT
dc.subjectRupture mechanismpt_PT
dc.subjectPlate kinematicspt_PT
dc.subjectTectonic settingpt_PT
dc.titleReanalysis of the 1761 transatlantic tsunamipt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage352pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage337pt_PT
oaire.citation.titleNatural Hazards and Earth System Sciencespt_PT
oaire.citation.volume19pt_PT
person.familyNameWronna
person.familyNamede Carvalho Viana Baptista
person.familyNameMIRANDA
person.givenNameMartin
person.givenNameMARIA ANA
person.givenNameJORGE MIGUEL
person.identifierhttps://scholar.google.pt/citations?user=ApQ9Bp4AAAAJ&hl=pt-PT
person.identifier1644327
person.identifier.ciencia-id1F1B-8B58-38C4
person.identifier.ciencia-idCF12-1EE3-F49B
person.identifier.ciencia-idED1A-8CC7-06DB
person.identifier.orcid0000-0002-8773-3738
person.identifier.orcid0000-0002-6381-703X
person.identifier.orcid0000-0002-1321-8709
person.identifier.ridB-5287-2008
person.identifier.scopus-author-id56986439000
person.identifier.scopus-author-idhttps://www.scopus.com/authid/detail.uri?authorId=7102934075
person.identifier.scopus-author-id7202982159
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication69f089ea-fe81-454e-a85c-dfb4c9c9f3df
relation.isAuthorOfPublicationa01dd185-70d9-4a8e-9c8c-1418e555ef00
relation.isAuthorOfPublication6949869a-9af7-4284-ac56-85747a2dfa45
relation.isAuthorOfPublication.latestForDiscovery6949869a-9af7-4284-ac56-85747a2dfa45

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