{"@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/1361699994673219072.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1002/jgrb.50389"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjgrb.50389"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/jgrb.50389"}}],"dc:title":[{"@value":"Inversion for absolute deviatoric crustal stress using focal mechanisms and coseismic stress changes: The 2011 <i>M</i>9 Tohoku‐oki, Japan, earthquake"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>The absolute magnitude of stress in the crust and the shear strength of faults are poorly known, yet fundamental quantities, in lithospheric dynamics. While stress magnitude cannot be measured directly, deviatoric stress state can be inferred indirectly from focal mechanism solutions collected before and after an earthquake. We extend a standard stress inversion for normalized stresses to invert for the 3‐D spatial distribution of absolute deviatoric stress and variation of fault strength with depth using focal mechanism solutions and coseismic stress changes produced by large earthquakes. We apply the method to the 2011 <jats:italic>M</jats:italic>9 Tohoku‐oki, Japan, earthquake. The northern Japan fore‐arc crust between 5 and 15 km depths appears to be weak with fault strength of 40–90 MPa, consistent with a coefficient of friction of 0.2–0.5. The <jats:italic>M</jats:italic>9 Tohoku‐oki coseismic stress change was large enough, relative to the ambient stress, to rotate the principal stress directions typically ~20° in the upper 20 km of the crust. The data from Japan require a heterogeneous ambient deviatoric stress field with short‐wavelength (~20–50 km) fluctuations in principal stress orientations.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380861294065853696","@type":"Researcher","foaf:name":[{"@value":"Yi‐Rong Yang"}],"jpcoar:affiliationName":[{"@value":"Department of Geosciences National Taiwan University  Taipei Taiwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994673219072","@type":"Researcher","foaf:name":[{"@value":"Kaj M. Johnson"}],"jpcoar:affiliationName":[{"@value":"Department of Geological Sciences Indiana University  Bloomington Indiana USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699994673219074","@type":"Researcher","foaf:name":[{"@value":"Ray Y. Chuang"}],"jpcoar:affiliationName":[{"@value":"Department of Geological Sciences Indiana University  Bloomington Indiana USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"21699313"},{"@type":"EISSN","@value":"21699356"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Solid Earth"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2013-10","prism:volume":"118","prism:number":"10","prism:startingPage":"5516","prism:endingPage":"5529"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjgrb.50389"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1002/jgrb.50389"}],"createdAt":"2013-10-12","modifiedAt":"2023-10-30","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360285707500126336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Determining changes in the state of stress associated with an earthquake via combined focal mechanism and moment tensor analysis: Application to the 2013 Awaji Island earthquake, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654738817664","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A Bayesian Approach to Estimating a Spatial Stress Pattern From <i>P</i> Wave First‐Motions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360865815490742528","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"A weak subducting slab at intermediate depths below northeast Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/2050870367116798080","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Rheological profile across the NE Japan interplate megathrust in the source region of the 2011 Mw9.0 Tohoku-oki earthquake"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1002/jgrb.50389"},{"@type":"CROSSREF","@value":"10.1186/1880-5981-66-73_references_DOI_MDxpMaZWZVJei5WNLJNMTl2Me4J"},{"@type":"CROSSREF","@value":"10.1002/2017jb015359_references_DOI_MDxpMaZWZVJei5WNLJNMTl2Me4J"},{"@type":"CROSSREF","@value":"10.1016/j.tecto.2015.02.023_references_DOI_MDxpMaZWZVJei5WNLJNMTl2Me4J"},{"@type":"CROSSREF","@value":"10.1126/sciadv.adh2106_references_DOI_MDxpMaZWZVJei5WNLJNMTl2Me4J"}]}