{"@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/1361137044514199680.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/0040-1951(83)90244-5"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:0040195183902445?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:0040195183902445?httpAccept=text/plain"}}],"dc:title":[{"@value":"Double seismic zone beneath the middle of Hokkaido, Japan, in the southwestern side of the Kurile Arc"}],"description":[{"notation":[{"@value":"Abstract   The vertical section of microearthquakes, determined accurately by using the Hokkaido University network, shows two dipping zones (the double seismic zone) 25–30 km apart in the depth range of 80–150 km beneath the middle of Hokkaido in the southwestern side of the Kurile arc. Hypocentral distribution of large earthquakes (mb > 4) based on the ISC (International Seismological Centre) bulletin also shows the double seismic zone beneath the same region. The hypocentral distribution indicates that the frequency of events occurring in the lower zone is four times greater than that in the upper zone. The difference in seismic activity between the two zones beneath Hokkaido is in contrast with the region beneath northeastern Honshu in the northeastern Japan arc.  Composite focal mechanisms of microearthquakes and individual mechanisms of large events mainly characterize the down-dip extension for the lower zone as is observed beneath northeastern Honshu. For the upper zone, however, the stress field is rather complex and not necessarily similar to that beneath northeastern Honshu. This may be considered to indicate the influence of slab contortion or transformation in the Hokkaido corner between the Kurile and the northeastern Japan arcs."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381137044514199682","@type":"Researcher","foaf:name":[{"@value":"Sadaomi Suzuki"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137044514199680","@type":"Researcher","foaf:name":[{"@value":"Tsutomu Sasatani"}]},{"@id":"https://cir.nii.ac.jp/crid/1381137044514199681","@type":"Researcher","foaf:name":[{"@value":"Yoshinobu Motoya"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00401951"}],"prism:publicationName":[{"@value":"Tectonophysics"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"1983-04","prism:volume":"96","prism:number":"1-2","prism:startingPage":"59","prism:endingPage":"76"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:0040195183902445?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:0040195183902445?httpAccept=text/plain"}],"createdAt":"2003-08-07","modifiedAt":"2024-12-13","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232523306624","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Spatial distribution of stress and frictional strength along the interplate boundary in northern Japan and its correlation to the locations of large earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567183443309824","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Physical mechanisms of oceanic mantle earthquakes: Comparison of natural and experimental events"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580232380379648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The Moho, slab and tomography of the East Japan forearc derived from seafloor S-net data"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654734662656","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"<i>P</i> wave azimuthal and radial anisotropy of the Hokkaido subduction zone"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848657254682240","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Complex slab structure and arc magmatism beneath the Japanese Islands"}]},{"@id":"https://cir.nii.ac.jp/crid/1360869855114417536","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Stress drops of intermediate-depth intraslab earthquakes beneath Tohoku, northern Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206512353664","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Crust and upper mantle resistivity structure in the southwestern end of the Kuril Arc as revealed by the joint analysis of conventional MT and network MT data"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681488665600","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Temporal changes in state of stress in the Tokachi Oki area after the 2003 Tokachi Oki Earthquake"},{"@value":"Temporal changes in state of stress in the Tokachi Oki region after the 2003 Tokachi Oki earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/2051714791869811968","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic imaging of slab metamorphism and genesis of intermediate-depth intraslab earthquakes"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1016/0040-1951(83)90244-5"},{"@type":"OPENAIRE","@value":"doi_dedup___::b00f0f82446988144d7903724e9781b1"},{"@type":"CROSSREF","@value":"10.1186/bf03351680_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1038/s41598-018-35290-x_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1016/j.tecto.2022.229452_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1186/bf03352552_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1002/2015jb012651_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1186/s40645-017-0126-9_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1016/j.jseaes.2012.12.031_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1186/s40623-024-02032-5_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"},{"@type":"CROSSREF","@value":"10.1016/j.tecto.2011.08.004_references_DOI_BWSCZLFlfB8DPpAFr3MsNJ8FUxg"}]}