{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360011146090569728.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/2017gc007230"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GC007230"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017GC007230"}}],"dc:title":[{"@value":"Modeling Seismic Cycles of Great Megathrust Earthquakes Across the Scales With Focus at Postseismic Phase"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Subduction is substantially multiscale process where the stresses are built by long‐term tectonic motions, modified by sudden jerky deformations during earthquakes, and then restored by following multiple relaxation processes. Here we develop a cross‐scale thermomechanical model aimed to simulate the subduction process from 1 min to million years' time scale. The model employs elasticity, nonlinear transient viscous rheology, and rate‐and‐state friction. It generates spontaneous earthquake sequences and by using an adaptive time step algorithm, recreates the deformation process as observed naturally during the seismic cycle and multiple seismic cycles. The model predicts that viscosity in the mantle wedge drops by more than three orders of magnitude during the great earthquake with a magnitude above 9. As a result, the surface velocities just an hour or day after the earthquake are controlled by viscoelastic relaxation in the several hundred km of mantle landward of the trench and not by the afterslip localized at the fault as is currently believed. Our model replicates centuries‐long seismic cycles exhibited by the greatest earthquakes and is consistent with the postseismic surface displacements recorded after the Great Tohoku Earthquake. We demonstrate that there is no contradiction between extremely low mechanical coupling at the subduction megathrust in South Chile inferred from long‐term geodynamic models and appearance of the largest earthquakes, like the Great Chile 1960 Earthquake.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380011146090569856","@type":"Researcher","foaf:name":[{"@value":"Stephan V. Sobolev"}],"jpcoar:affiliationName":[{"@value":"GFZ German Research Center for Geosciences Potsdam Germany"},{"@value":"Institute of Earth and Environmental Sciences University of Potsdam  Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1380011146090569728","@type":"Researcher","foaf:name":[{"@value":"Iskander A. Muldashev"}],"jpcoar:affiliationName":[{"@value":"GFZ German Research Center for Geosciences Potsdam Germany"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15252027"},{"@type":"EISSN","@value":"15252027"}],"prism:publicationName":[{"@value":"Geochemistry, Geophysics, Geosystems"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2017-12","prism:volume":"18","prism:number":"12","prism:startingPage":"4387","prism:endingPage":"4408"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GC007230"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017GC007230"}],"createdAt":"2017-11-15","modifiedAt":"2023-09-26","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050002213399399424","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Omori-like slow decay (p < 1) of postseismic displacement rates following the 2011 Tohoku megathrust earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1050845763871345152","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Machine Learning Approach to Characterize the Postseismic Deformation of the 2011 Tohoku‐Oki Earthquake Based on Recurrent Neural Network"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285708445291520","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake"}]},{"@id":"https://cir.nii.ac.jp/crid/1360302864790683008","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Function Model Based on Nonlinear Transient Rheology of Rocks: An Analysis of Decadal GNSS Time Series After the 2011 Tohoku‐oki Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1361975843010088704","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geodetic Evidence of Time‐Dependent Viscoelastic Interseismic Deformation Driven by Megathrust Locking in the Southwest Japan Subduction Zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001277392978688","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Modeling Deformation and Stress States in the Island-arc Crust Considering Heterogeneous Rheological Structure"},{"@language":"ja","@value":"不均質レオロジー構造を考慮した島弧地殻における変形と応力場のモデル化"},{"@language":"ja-Kana","@value":"フキンシツ レオロジー コウゾウ オ コウリョ シタ トウコ チカク ニ オケル ヘンケイ ト オウリョクジョウ ノ モデルカ"}]},{"@id":"https://cir.nii.ac.jp/crid/2051151842049991168","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Structural control and system-level behavior of the seismic cycle at the Nankai Trough"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266990213504","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"MCMC inversion of the transient and steady-state creep flow law parameters of dunite under dry and wet conditions"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/2017gc007230"},{"@type":"CROSSREF","@value":"10.1038/s41467-019-08984-7_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01543-9_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1029/2023gl103259_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.5026/jgeography.128.813_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1029/2019gl084578_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-1145-0_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1186/s40623-020-01162-w_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"},{"@type":"CROSSREF","@value":"10.1029/2019gl085551_references_DOI_aVAuPlH0U82vj4Pf3JL2CBGFYUf"}]}