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On a planetary forcing of global seismicity

2025-07-02Artigo científico Acesso aberto
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datacite.subject.sdg13:Ação Climática
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorDumont, Stéphanie
dc.contributor.authord’Ars, Jean de Bremond
dc.contributor.authorBoulé, Jean-Baptiste
dc.contributor.authorCourtillot, Vincent
dc.contributor.authorGèze, Marc
dc.contributor.authorGibert, Dominique
dc.contributor.authorKossobokov, Vladimir
dc.contributor.authorMouël, Jean-Louis Le
dc.contributor.authorLopes, Fernando
dc.contributor.authorNeves, Maria C.
dc.contributor.authorSilveira, Graça
dc.contributor.authorPetrosino, Simona
dc.contributor.authorZuddas, Pierpaolo
dc.date.accessioned2026-05-13T16:13:40Z
dc.date.available2026-05-13T16:13:40Z
dc.date.issued2025-07-02
dc.description.abstractWe have explored the temporal variability of the seismicity at global scale over the last 124 years, as well as its potential drivers. To achieve this, we constructed and analyzed an averaged global seismicity curve for earthquakes of magnitude equal or greater than 6.0 since 1900. Using Singular Spectrum Analysis, we decomposed this curve and compared the extracted pseudo-cycles with two global geophysical parameters associated with Earth’s tides: length-of-day variations and sea-level changes. Our results reveal that these three geophysical signal curves can be reconstructed up to ∼90% by the sum of up to seven periodic components ranging from 1 to ∼60 years, largely aligned with planetary ephemerides. We discuss these results in the framework of Laplace’s theory, with a particular focus on the phase relationships between seismicity, length-of-day variations, and sea-level changes to further elucidate the underlying physical mechanisms. Finally, integrating observations from seismogenic regions, we propose a possible trigger mechanism based on solid Earth–hydrosphere interactions, emphasizing the key role of water-rock interactions in modulating earthquake occurrence.eng
dc.description.sponsorshipUIDP/50019/2020; LA/P/0068/2020
dc.identifier.doi10.3389/feart.2025.1587650
dc.identifier.issn2296-6463
dc.identifier.urihttp://hdl.handle.net/10400.1/28948
dc.language.isoeng
dc.peerreviewedyes
dc.publisherFrontiers Media SA
dc.relationIntegRatEd tools to decipher the genesis and Spatio-TemporaL Evolution of Seismic Sequences.
dc.relation.ispartofFrontiers in Earth Science
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectWorldwide seismicity
dc.subjectSea-level variations
dc.subjectLength of day
dc.subjectPeriodic behavior
dc.subjectWater-rock interactions
dc.subjectGlobal-scale processes
dc.subjectTime-series analysis
dc.titleOn a planetary forcing of global seismicityeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberPTDC/CTA-GEF/6674/2020
oaire.awardTitleIntegRatEd tools to decipher the genesis and Spatio-TemporaL Evolution of Seismic Sequences.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCTA-GEF%2F6674%2F2020/PT
oaire.citation.startPage1587650
oaire.citation.titleFrontiers in Earth Science
oaire.citation.volume13
oaire.fundingStream3599-PPCDT
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameNeves
person.givenNameMaria C.
person.identifier.ciencia-idF016-4214-4A45
person.identifier.orcid0000-0001-5726-3467
person.identifier.ridA-7703-2013
person.identifier.scopus-author-id7103415176
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication5aa08a50-0e64-4d5d-acd6-d817b92e74c5
relation.isAuthorOfPublication.latestForDiscovery5aa08a50-0e64-4d5d-acd6-d817b92e74c5
relation.isProjectOfPublication443b8251-39b3-4f62-b236-14ab6f061f42
relation.isProjectOfPublication.latestForDiscovery443b8251-39b3-4f62-b236-14ab6f061f42

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