{"@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/1362825895401370752.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2008jb006234"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2008JB006234"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2008JB006234"}}],"dc:title":[{"@value":"Distribution of seismicity across strike‐slip faults in California"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>The distribution of seismicity about strike‐slip faults provides measurements of fault roughness and damage zone width. In California, seismicity decays with distance from strike‐slip faults according to a power law ∼(1 + <jats:italic>x</jats:italic><jats:sup>2</jats:sup>/<jats:italic>d</jats:italic><jats:sup>2</jats:sup>)<jats:sup>−</jats:sup><jats:sup><jats:italic>γ</jats:italic></jats:sup><jats:sup>/2</jats:sup>. This scaling relation holds out to a fault‐normal distance <jats:italic>x</jats:italic> of 3–6 km and is compatible with a “rough fault loading” model in which the inner scale <jats:italic>d</jats:italic> measures the half width of a volumetric damage zone and the roll‐off rate <jats:italic>γ</jats:italic> is governed by stress variations due to fault roughness. According to Dieterich and Smith's 2‐D simulations, <jats:italic>γ</jats:italic> approximates the fractal dimension of along‐strike roughness. Near‐fault seismicity is more localized on faults in northern California (NoCal, <jats:italic>d</jats:italic> = 60 ± 20 m, <jats:italic>γ</jats:italic> = 1.65 ± .05) than in southern California (SoCal, <jats:italic>d</jats:italic> = 220 ± 40 m, <jats:italic>γ</jats:italic> = 1.16 ± .05). The Parkfield region has a damage zone half width (<jats:italic>d</jats:italic> = 120 ± 30 m) consistent with the SAFOD drilling estimate; its high roll‐off rate (<jats:italic>γ</jats:italic> = 2.30 ± .25) indicates a relatively flat roughness spectrum: ∼<jats:italic>k</jats:italic><jats:sup>−1</jats:sup> versus <jats:italic>k</jats:italic><jats:sup>−2</jats:sup> for NoCal, <jats:italic>k</jats:italic><jats:sup>−3</jats:sup> for SoCal. Our damage zone widths (the first direct estimates averaged over the seismogenic layer) can be interpreted in terms of an across‐strike “fault core multiplicity” that is ∼1 in NoCal, ∼2 at Parkfield, and ∼3 in SoCal. The localization of seismicity near individual faults correlates with cumulative offset, seismic productivity, and aseismic slip, consistent with a model in which faults originate as branched networks with broad, multicore damage zones and evolve toward more localized, lineated features with low fault core multiplicity, thinner damage zones, and less seismic coupling. Our results suggest how earthquake triggering statistics might be modified by the presence of faults.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825895401370752","@type":"Researcher","foaf:name":[{"@value":"Peter M. Powers"}],"jpcoar:affiliationName":[{"@value":"Department of Earth Sciences University of Southern California  Los Angeles California USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895401370753","@type":"Researcher","foaf:name":[{"@value":"Thomas H. Jordan"}],"jpcoar:affiliationName":[{"@value":"Southern California Earthquake Center University of Southern California  Los Angeles California USA"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research: Solid Earth"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2010-05","prism:volume":"115","prism:number":"B5","prism:startingPage":"B05305"},"reviewed":"false","dc:rights":["http://onlinelibrary.wiley.com/termsAndConditions#vor"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2008JB006234"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2008JB006234"}],"createdAt":"2010-05-10","modifiedAt":"2023-11-02","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360285704779330048","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Nucleation process of an M2 earthquake in a deep gold mine in South Africa inferred from on‐fault foreshock activity"}]},{"@id":"https://cir.nii.ac.jp/crid/1360861705593961728","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Earthquake Cycle Deformation Associated With the 2021 <i>M</i><sub><i>W</i></sub> 7.4 Maduo (Eastern Tibet) Earthquake: An Intrablock Rupture Event on a Slow‐Slipping Fault From Sentinel‐1 InSAR and Teleseismic Data"}]},{"@id":"https://cir.nii.ac.jp/crid/1390846609814385792","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Evaluation of Phenomena Preceding Earthquakes and Earthquake Predictability"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892145535616","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Laboratory evidence of strength recovery of a healed fault : implications for a mechanism responsible for creating wide fault zones"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1029/2008jb006234"},{"@type":"CROSSREF","@value":"10.1002/2014jb011680_references_DOI_XIqPQU3SvA8l3UWBPmDAQ2TUrt5"},{"@type":"CROSSREF","@value":"10.1186/s40623-015-0377-x_references_DOI_XIqPQU3SvA8l3UWBPmDAQ2TUrt5"},{"@type":"CROSSREF","@value":"10.20965/jdr.2020.p0112_references_DOI_XIqPQU3SvA8l3UWBPmDAQ2TUrt5"},{"@type":"CROSSREF","@value":"10.1029/2022jb024268_references_DOI_XIqPQU3SvA8l3UWBPmDAQ2TUrt5"}]}