{"@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/1362825896334857472.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.tecto.2006.11.001"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0040195106005336?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0040195106005336?httpAccept=text/plain"}}],"dc:title":[{"@value":"Imaging the heterogeneous source area of the 2003 M6.4 northern Miyagi earthquake, NE Japan, by double-difference tomography"}],"description":[{"notation":[{"@value":"Abstract   A shallow M6.4 inland earthquake occurred on 26 July 2003 in the northern part of Miyagi Prefecture, northeastern Japan. This earthquake was a typical inland thrust earthquake, a type that is common in NE Japan. We obtained a detailed seismic velocity structure in the focal area of this earthquake by the double-difference tomography method. Arrival-time data came from temporary seismic stations deployed above the mainshock fault plane. Both the P-wave and S-wave velocities in the hanging wall were lower than those in the footwall. Aftershocks were aligned along a zone where the seismic velocity changes rapidly. This is consistent with the interpretation that the 2003 northern Miyagi earthquake occurred along a fault that acted as a normal fault in the Miocene and has been reactivated as a reverse fault under the present compressional stress regime. The large slip area by the main shock rupture (asperity) corresponds to an area with relatively high P- and S-wave velocities. A zone with low Vp/Vs was detected along the aftershock area. One of the possible causes of this low-Vp/Vs zone is the existence of high-aspect-ratio pores that contain water. Hypocenters of the main shock, largest foreshock, and largest aftershock are also located within the low-Vp/Vs zone."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825896334857344","@type":"Researcher","foaf:name":[{"@value":"Tomomi Okada"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825896334857345","@type":"Researcher","foaf:name":[{"@value":"Akira Hasegawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825896334857347","@type":"Researcher","foaf:name":[{"@value":"Jun'ichi Suganomata"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825896334857473","@type":"Researcher","foaf:name":[{"@value":"Norihito Umino"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825896334857472","@type":"Researcher","foaf:name":[{"@value":"Haijiang Zhang"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825896334857346","@type":"Researcher","foaf:name":[{"@value":"Clifford H. Thurber"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00401951"}],"prism:publicationName":[{"@value":"Tectonophysics"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2007-02","prism:volume":"430","prism:number":"1-4","prism:startingPage":"67","prism:endingPage":"81"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0040195106005336?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0040195106005336?httpAccept=text/plain"}],"createdAt":"2007-01-06","modifiedAt":"2021-08-07","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232523426560","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Large heterogeneous structure beneath the Atotsugawa Fault, central Japan, revealed by seismic refraction and reflection 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8.0)"}]},{"@id":"https://cir.nii.ac.jp/crid/1390004222631011072","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Hyper Dense Seismic Observation for Investigation on Fault Zone Development: Application to Hypocentral Area of 2000 Western Tottori Earthquake"},{"@language":"ja","@value":"超多点稠密地震観測による断層帯発達過程の解明に向けて"},{"@value":"超多点稠密地震観測による断層帯発達過程の解明に向けて : 2000年鳥取県西部地震域への適用"},{"@language":"ja-Kana","@value":"チョウタテンチュウミツジシン カンソク ニ ヨル ダンソウタイ ハッタツ カテイ ノ カイメイ ニ ムケテ : 2000ネン トットリケン セイブ ジシンイキ エ ノ テキヨウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679279761920","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Interplate Earthquakes and the Asperity Model"},{"@language":"ja","@value":"プレート境界地震とアスペリティ・モデル"},{"@language":"ja-Kana","@value":"プレート キョウカイ ジシン ト アスペリティ 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