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Response of Fogo volcano (Cape Verde) to lunisolar gravitational forces during the 2014-2015 eruption

2021-03Journal article Restricted access
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dc.contributor.authorDumont, Stéphanie
dc.contributor.authorSilveira, Graça
dc.contributor.authorCustódio, Susana
dc.contributor.authorLopes, Fernando
dc.contributor.authorLe Mouel, Jean-Louis
dc.contributor.authorGouhier, Mathieu
dc.contributor.authorGUEHENNEUX, Yannick
dc.date.accessioned2021-04-27T10:14:08Z
dc.date.available2021-04-27T10:14:08Z
dc.date.issued2021-03
dc.description.abstractVolcanoes are complex systems that evolve in space and time as a result of their eruptive activity. Volcanic eruptions represent the ultimate expression of a complex interplay between internal and external processes that span across different time scales. Deciphering how internal and external processes interact at the time scale of eruptions may provide key insights on the temporal evolution of eruptions and also help to better evaluate associated volcanic hazards. Studies of the tidal influence on volcanic activity have fallen within this context, although the cause-effect relationship between tides and eruptions is still unclear. In this study, we used Singular Spectrum Analysis to analyze three time-series, namely the seismic tremor, SO2 emission and lava volume flow rate, which cover the first month of effusive activity at Fogo volcano, Cape Verde, in 2014-2015. We detect 9 tidal periodicities and up to 5 in each time-series ranging from semi-diurnal to fortnightly periods. We show that the movement of magma at crustal depths and at surface as well as gas emission during the effusive eruption are all modulated by lunisolar gravitational forces. We highlight the relevance of the volcano location on Earth, which together with the timing of the eruption, associated with a specific astronomical configuration, result in a specific combination of tides that directly influence the volcano eruptive activity. With this data set, we further investigate the response of Fogo volcano to this external forcing. We show that during the 2014-2015 eruption, Fogo volcano acted as a bandpass filter to quasi-permanent tidal oscillations.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDUMONT, Stephanie; [et al] – Response of Fogo volcano (Cape Verde) to lunisolar gravitational forces during the 2014-2015 eruption. Physics of the Earth and Planetary Interiors. ISSN 0031-9201. Vol. 312 (2021), pp. 1-11pt_PT
dc.identifier.doi10.1016/j.pepi.2021.106659pt_PT
dc.identifier.eissn1872-7395
dc.identifier.issn0031-9201
dc.identifier.urihttp://hdl.handle.net/10400.21/13231
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationSFRH/BPD/17714/2016 - FCTpt_PT
dc.relationPTDC/GEO-GEO/1123/2014 - FCT through the project FIREpt_PT
dc.relationUIDB/50019/2020 - Instituto Dom Luiz, IDLpt_PT
dc.relationPOCI-01-0145-FEDER-022151 - Collaboratory for Geosciences (C4G), a distributed research infrastructure of the Portuguese Roadmappt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0031920121000170?token=2EA36970CA19A0E46746C88D1330C49D09D11D337A4C82A47A62AA53F30523DD2F4D4EB75C321A241C6DB6D30E3757BC&originRegion=eu-west-1&originCreation=20210427100041pt_PT
dc.subjectFogo eruptionpt_PT
dc.subjectEarth tidespt_PT
dc.subjectSSApt_PT
dc.subjectSeismic tremorpt_PT
dc.subjectEruptive activitypt_PT
dc.subjectExternal forcingpt_PT
dc.titleResponse of Fogo volcano (Cape Verde) to lunisolar gravitational forces during the 2014-2015 eruptionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage11pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titlePhysics of the Earth and Planetary Interiorspt_PT
oaire.citation.volume312pt_PT
person.familyNameDumont
person.familyNameSilveira
person.familyNameCustódio
person.familyNameGUEHENNEUX
person.givenNameStéphanie
person.givenNameGraça
person.givenNameSusana
person.givenNameYannick
person.identifierFC8iALAAAAAJ
person.identifier91922
person.identifierK-7598-2012
person.identifier.ciencia-id2217-E8C9-E98D
person.identifier.ciencia-id1116-1080-16F3
person.identifier.ciencia-id2113-1BF3-9A06
person.identifier.orcid0000-0002-4779-7788
person.identifier.orcid0000-0002-2110-2554
person.identifier.orcid0000-0001-7457-4179
person.identifier.orcid0000-0002-0318-9713
person.identifier.ridA-3081-2009
person.identifier.scopus-author-id6602698071
person.identifier.scopus-author-id15749783000
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery11a9c1fe-9c64-4c90-8bf4-7898108c9787

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