{"@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/1361699995039817344.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2007gl031617"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007GL031617"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL031617"}}],"dc:title":[{"@value":"Interface locking along the subduction megathrust from <i>b</i>‐value mapping near Nicoya Peninsula, Costa Rica"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>To understand controlling factors for seismogenesis and strain‐accumulation in subduction megathrusts we examine seismicity patterns across Nicoya, Costa Rica, to determine the overall and spatial variability in the earthquake frequency‐magnitude distribution along the interface. The mean reduction in earthquake activity with magnitude, <jats:italic>b</jats:italic>‐value, is higher (1.06) than global subduction zone averages (0.6–0.8), suggesting the interface here is weakly coupled. Strong spatial variations in <jats:italic>b</jats:italic> are anticorrelated (−0.53) with geodetic estimates of interface locking of E. Norabuena et al. (2004). High <jats:italic>b</jats:italic> prevails in two regions, including the subducted Fisher seamount chain. A broad zone of reduced <jats:italic>b</jats:italic> is observed at and offshore the central Nicoya coast; extending towards an imaged locked patch. These results suggest <jats:italic>b</jats:italic>‐value studies may be useful in identifying regions of increased interface locking in subduction zones, which may indicate regions capable of large slip in future large earthquakes.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699995039817346","@type":"Researcher","foaf:name":[{"@value":"Abhijit Ghosh"}],"jpcoar:affiliationName":[{"@value":"School of Earth and Atmospheric Sciences Georgia Institute of Technology  Atlanta Georgia USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995039817347","@type":"Researcher","foaf:name":[{"@value":"Andrew V. Newman"}],"jpcoar:affiliationName":[{"@value":"School of Earth and Atmospheric Sciences Georgia Institute of Technology  Atlanta Georgia USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995039817344","@type":"Researcher","foaf:name":[{"@value":"Amanda M. Thomas"}],"jpcoar:affiliationName":[{"@value":"School of Earth and Atmospheric Sciences Georgia Institute of Technology  Atlanta Georgia USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699995039817345","@type":"Researcher","foaf:name":[{"@value":"Grant T. Farmer"}],"jpcoar:affiliationName":[{"@value":"School of Earth and Atmospheric Sciences Georgia Institute of Technology  Atlanta Georgia USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00948276"},{"@type":"EISSN","@value":"19448007"}],"prism:publicationName":[{"@value":"Geophysical Research Letters"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2008-01","prism:volume":"35","prism:number":"1","prism:startingPage":"L01301"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007GL031617"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GL031617"}],"createdAt":"2007-12-31","modifiedAt":"2023-10-31","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002216708772096","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismogenic characteristics of the Northern Mariana shallow thrust zone from local array data"}]},{"@id":"https://cir.nii.ac.jp/crid/1360294643820302848","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Changes in seismicity pattern due to the 2016 Kumamoto earthquake sequence and implications for improving the foreshock traffic-light system"}]},{"@id":"https://cir.nii.ac.jp/crid/1360588380127843584","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Earthquake detection capacity of the Dense Oceanfloor Network system for Earthquakes and Tsunamis (DONET)"}]},{"@id":"https://cir.nii.ac.jp/crid/1361694368032268160","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismicity at the Northern Hikurangi Margin, New Zealand, and Investigation of the Potential Spatial and Temporal Relationships With a Shallow Slow Slip Event"}]},{"@id":"https://cir.nii.ac.jp/crid/2051151842060075136","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Changes in the b value in and around the focal areas of the M6.9 and M6.8 earthquakes off the coast of Miyagi prefecture, Japan, in 2021"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2007gl031617"},{"@type":"CROSSREF","@value":"10.1029/2011gc003853_references_DOI_Sfk0GvDeCVlIID0QLfHBddtccq7"},{"@type":"CROSSREF","@value":"10.1016/j.tecto.2021.229175_references_DOI_Sfk0GvDeCVlIID0QLfHBddtccq7"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01511-3_references_DOI_Sfk0GvDeCVlIID0QLfHBddtccq7"},{"@type":"CROSSREF","@value":"10.1007/s10950-024-10219-2_references_DOI_Sfk0GvDeCVlIID0QLfHBddtccq7"},{"@type":"CROSSREF","@value":"10.1029/2018jb017211_references_DOI_Sfk0GvDeCVlIID0QLfHBddtccq7"}]}