{"@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/1362544420728098816.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.epsl.2007.01.019"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0012821X07000374?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0012821X07000374?httpAccept=text/plain"}},{"identifier":{"@type":"NAID","@value":"30025128391"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"The key frictional parameters controlling spatial variations in the speed of postseismic-slip propagation on a subduction plate boundary"}],"description":[{"notation":[{"@value":"Abstract   We investigate relations between the postseismic-slip process, effective normal stress, and friction parameters for a rate- and state-dependent law using 3-D numerical simulations of a subduction zone. The results show that the postseismic propagation speed largely depends on  A (=  aσ ) rather than ( A  −  B ) =  σ ( a  −  b ) or  d  c , where  a  and  b  are the frictional parameters describing the friction law,  σ  is the effective normal stress, and  d  c  is the characteristic slip distance. The duration of the postseismic slip is found to depend on  d  c  and ( a  −  b ). Considering that postseismic slip propagates faster in shallower regions than in deeper regions for both our numerical simulations and observation off Sanriku, and that frictional parameter  a  is not likely to be several times smaller than that estimated from rock laboratory experiments, we conclude that effective normal stress mainly controls the spatial variations in the speed of postseismic-slip propagation for large earthquakes off Sanriku. Moreover, the effective normal stress much lower than lithostatic stress due to high pore pressure may explain the speed of aseismic slip propagation in other subduction zones as well as off Sanriku."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1584231876062773504","@type":"Researcher","foaf:name":[{"@value":"K ARIYOSHI"}]},{"@id":"https://cir.nii.ac.jp/crid/1382544420728098816","@type":"Researcher","foaf:name":[{"@value":"T MATSUZAWA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382544420728098818","@type":"Researcher","foaf:name":[{"@value":"A HASEGAWA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0012821X"}],"prism:publicationName":[{"@value":"Earth and Planetary Science Letters"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2007-04-15","prism:volume":"256","prism:number":"1-2","prism:startingPage":"136","prism:endingPage":"146"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0012821X07000374?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0012821X07000374?httpAccept=text/plain"}],"createdAt":"2007-01-25","modifiedAt":"2019-01-09","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000781801204224","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"15204037"},{"@type":"JGN","@value":"JP15204037"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15204037/"}],"notation":[{"@language":"ja","@value":"プレート境界におけるアスペリティのマッピングとすべりの時空間分布の推定"},{"@language":"en","@value":"Mapping of asperities and estimation of spatiotemporal distribution of interplate 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