{"@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/1360004229807889536.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/2017gl074593"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GL074593"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017GL074593"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Seismic velocity structure in the source region of the 2016 Kumamoto earthquake sequence, Japan"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>We investigate seismic wave velocity structure and spatial distribution of the seismicity in the source region of the 2016 Kumamoto earthquake sequence. A one‐dimensional mean velocity shows that the seismogenic zone has a high‐velocity and low‐Vp/Vs ratio relative to the average velocity structure of Kyushu Island. This indicates that the crust is relatively strong, capable of sustaining sufficiently high strain energy to facilitate two large (<jats:italic>M</jats:italic><jats:sub><jats:italic>j</jats:italic></jats:sub> > 6.5) earthquakes in close proximity to one another in rapid succession. Three‐dimensional tomography of the seismogenic zone around the source of the 2016 Kumamoto earthquake sequence yields Vp = 6 km/s and Vs = 3.5 km/s. Most large‐displacement areas (asperities) of the <jats:italic>M</jats:italic><jats:sub><jats:italic>j</jats:italic></jats:sub> 7.3 event overlap with the seismogenic zone and the overlying surface layer. Aftershock seismicity is distributed deeper than the conventional seismogenic zone, which suggests decreased strength due to fluids or increased stress, both caused by coseismic slip.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004229807889670","@type":"Researcher","foaf:name":[{"@value":"Azusa Shito"}],"jpcoar:affiliationName":[{"@value":"Institute of Seismology and Volcanology Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889797","@type":"Researcher","foaf:name":[{"@value":"Satoshi Matsumoto"}],"jpcoar:affiliationName":[{"@value":"Institute of Seismology and Volcanology Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889795","@type":"Researcher","foaf:name":[{"@value":"Hiroshi Shimizu"}],"jpcoar:affiliationName":[{"@value":"Institute of Seismology and Volcanology Kyushu University  Fukuoka Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889803","@type":"Researcher","foaf:name":[{"@value":"Takahiro Ohkura"}],"jpcoar:affiliationName":[{"@value":"Aso Volcanological Laboratory, Institute for Geothermal Sciences, Graduate School of Science Kyoto University  Aso Kumamoto Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889799","@type":"Researcher","foaf:name":[{"@value":"Hiroaki Takahashi"}],"jpcoar:affiliationName":[{"@value":"Institute of Seismology and Volcanology Hokkaido University  Sapporo Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889669","@type":"Researcher","foaf:name":[{"@value":"Shinichi Sakai"}],"jpcoar:affiliationName":[{"@value":"Earthquake Research Institute University of Tokyo  Tokyo Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004229807889807","@type":"Researcher","foaf:name":[{"@value":"Tomomi Okada"}],"jpcoar:affiliationName":[{"@value":"Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate 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(AGU)"}],"prism:publicationDate":"2017-08-12","prism:volume":"44","prism:number":"15","prism:startingPage":"7766","prism:endingPage":"7772"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GL074593"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/2017GL074593"}],"createdAt":"2017-07-21","modifiedAt":"2023-09-09","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000781902596224","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"16H06298"},{"@type":"JGN","@value":"JP16H06298"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16H06298/"}],"notation":[{"@language":"ja","@value":"2016年熊本地震と関連する活動に関する総合調査"},{"@language":"en","@value":"General study on the 2016 Kumamoto earthquake and related 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