{"@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/1362544420654069248.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2007gc001640"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2007GC001640"}},{"identifier":{"@type":"URI","@value":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GC001640"}}],"dc:title":[{"@value":"Complex evolution of transient slip derived from precise tremor locations in western Shikoku, Japan"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Transient slip events, which occur more slowly than traditional earthquakes, are increasingly being recognized as important components of strain release on faults and may substantially impact the earthquake cycle. Surface‐based geodetic instruments provide estimates of the overall slip distribution in larger transients but are unable to capture the detailed evolution of such slip, either in time or in space. Accompanying some of these slip transients is a relatively weak, extended duration seismic signal, known as nonvolcanic tremor, which has recently been shown to be generated by a sequence of shear failures occurring as part of the slip event. By precisely locating the tremor, we can track some features of slip evolution with unprecedented resolution. Here, we analyze two weeklong episodes of tremor and slow slip in western Shikoku, Japan. We find that these slip transients do not evolve in a smooth and steady fashion but contain numerous subevents of smaller size and shorter duration. In addition to along‐strike migration rates of ∼10 km/d observed previously, much faster migration also occurs, usually in the slab dip direction, at rates of 25–150 km/h over distances of up to ∼20 km. We observe such migration episodes in both the updip and downdip directions. These episodes may be most common on certain portions of the plate boundary that generate strong tremor in intermittent bursts. The surrounding regions of the fault may slip more continuously, driving these stronger patches to repeated failures. Tremor activity has a strong tidal periodicity, possibly reflecting the modulation of slow slip velocity by tidal stresses.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382544420654069249","@type":"Researcher","foaf:name":[{"@value":"David R. Shelly"}],"jpcoar:affiliationName":[{"@value":"Department of Geophysics Stanford University  397 Panama Mall, Stanford California 94305‐2215 USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382544420654069248","@type":"Researcher","foaf:name":[{"@value":"Gregory C. Beroza"}],"jpcoar:affiliationName":[{"@value":"Department of Geophysics Stanford University  397 Panama Mall, Stanford California 94305‐2215 USA"}]},{"@id":"https://cir.nii.ac.jp/crid/1382544420654069250","@type":"Researcher","foaf:name":[{"@value":"Satoshi Ide"}],"jpcoar:affiliationName":[{"@value":"Department of Earth and Planetary Science University of Tokyo  Hongo 7‐3‐1, Bunkyo‐ku, Tokyo 113‐0033 Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"15252027"},{"@type":"EISSN","@value":"15252027"}],"prism:publicationName":[{"@value":"Geochemistry, Geophysics, Geosystems"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2007-10","prism:volume":"8","prism:number":"10","prism:startingPage":"Q10014"},"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/10.1029%2F2007GC001640"},{"@id":"https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2007GC001640"}],"createdAt":"2007-10-29","modifiedAt":"2023-10-12","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050011086237001728","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic observations"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004229808521216","@type":"Article","resourceType":"学術雑誌論文(journal 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Dilatancy/Compaction"}]},{"@id":"https://cir.nii.ac.jp/crid/1360017282195502848","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Model for tectonic tremors: Enduring events, moment rate spectrum, and moment-duration scaling"}]},{"@id":"https://cir.nii.ac.jp/crid/1360023718186912256","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Implications of Fault‐Valve Behavior From Immediate Aftershocks Following the 2023 <i>M</i><sub><i>j</i></sub>6.5 Earthquake Beneath the Noto Peninsula, Central Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360285704781147648","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Tidal sensitivity of tectonic tremors in Nankai and Cascadia subduction 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