{"@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/1363670319302927232.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1785/0120040075"}},{"identifier":{"@type":"URI","@value":"https://syndication.highwire.org/content/doi/10.1785/0120040075"}}],"dc:title":[{"@value":"Scale Dependence of Apparent Stress for Earthquakes along the Subducting Pacific Plate in Northeastern Honshu, Japan"}],"description":[{"notation":[{"@value":"Apparent stress, which quantifies the ratio of high-frequency spectral amplitude to the direct current level of source displacement spectra, is known to reflect the source rupture process. Whether this parameter depends on the seismic moment has not yet been well established because of the difficulties in the reliable estimation of high-frequency source spectra. To overcome this problem, we estimate S -wave source spectra by using site amplification factors and attenuation factor ![Graphic][1] , which are systematically measured by the coda normalization method. Analyzing horizontal components of velocity seismograms recorded at 70-borehole seismic stations of Hi-net (National Research Institute for Earth Science and Disaster Prevention) in northeastern Honshu, Japan, we estimate site factors and ![Graphic][2]  in the 0.5–32 Hz frequency band. By using these factors, we evaluate the source spectra of 225 small to moderate earthquakes that occurred in and around the subducting Pacific plate. Site-amplification factors we obtained strongly depend on frequency, and the frequency dependence clearly changes with the lithology and geologic age of rock. Obtained ![Graphic][3]  values decrease with frequency in proportion to the reciprocal of frequency. The apparent stresses estimated from S -wave spectra clearly increase from 104 to 107 Pa with the seismic moment increasing, which cannot be attributed to the limited-frequency band and other artificial causes. The power of scale dependence is estimated as 0.39–0.44 for the seismic moment range from 1011 to 1017 N m. Some of the scale dependence of apparent stress is attributed to the scale dependence of Brune’s stress drop.   [1]: /embed/inline-graphic-1.gif  [2]: /embed/inline-graphic-2.gif  [3]: /embed/inline-graphic-3.gif"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380290617416596868","@type":"Researcher","foaf:name":[{"@value":"T. Takahashi"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00371106"}],"prism:publicationName":[{"@value":"Bulletin of the Seismological Society of America"}],"dc:publisher":[{"@value":"Seismological Society of America (SSA)"}],"prism:publicationDate":"2005-08-01","prism:volume":"95","prism:number":"4","prism:startingPage":"1334","prism:endingPage":"1345"},"reviewed":"false","url":[{"@id":"https://syndication.highwire.org/content/doi/10.1785/0120040075"}],"createdAt":"2005-08-12","modifiedAt":"2017-11-03","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360285704777524736","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Seismic attenuation beneath northeastern Japan: Constraints on mantle dynamics and arc magmatism"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567182088993664","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"P-wave attenuation in the Pacific slab beneath northeastern Japan revealed by the spectral ratio of intraslab earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360567185523045632","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Three-dimensional attenuation structure of intrinsic absorption and wide-angle scattering of S waves in northeastern Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580229814397696","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Time-domain source parameter estimation of<i>M</i>w 3–7 earthquakes in Japan from a large database of moment-rate functions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360584340523460352","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Direct Evidence for Diverse Source Complexity in Small Earthquakes (Mw 3.3–5.0) Obtained from Near-Source Borehole Seismic Data"}]},{"@id":"https://cir.nii.ac.jp/crid/1360588379364719616","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Systematic Differences in Energy Radiation Processes Between Regular and Intraplate Low‐Frequency Earthquakes Around the Focal Area of the 2008 Mw ${\\boldsymbol{M}}_{\\boldsymbol{w}}$ 6.9 Iwate‐Miyagi, Japan, Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1360848654738610816","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temporal Changes in Stress Drop, Frictional Strength, and Earthquake Size Distribution in the 2011 Yamagata‐Fukushima, NE Japan, Earthquake Swarm, Caused by Fluid Migration"}]},{"@id":"https://cir.nii.ac.jp/crid/1360853567539472768","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Detection of temporal change in near-source attenuation during intense fluid-driven seismicity following the 2011 Tohoku-Oki earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1360869855114417536","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Stress drops of intermediate-depth intraslab earthquakes beneath Tohoku, northern Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360869856024751872","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Near‐Source Waveform Modeling to Estimate Shallow Crustal Attenuation and Radiated Energy of <i>M</i><sub>w</sub> 2.0–4.5 Earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679279763072","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Scaling Relations for Earthquake Source Process"},{"@language":"ja","@value":"地震発生過程のスケール依存性"}]},{"@id":"https://cir.nii.ac.jp/crid/2051996266985502336","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Attenuation contrast in mantle wedge across the volcanic front of northeastern Japan that controls propagations of high-frequency S-wave later phases"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1785/0120040075"},{"@type":"OPENAIRE","@value":"doi_dedup___::f01ff24c975a44a37b14da7215c6ebe2"},{"@type":"CROSSREF","@value":"10.4294/zisin.61.329_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1002/2013jb010388_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1016/j.epsl.2018.02.032_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01361-z_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1111/j.1365-246x.2012.05438.x_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1093/gji/ggad068_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1785/0220230431_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1029/2024jb030750_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1002/2017jb014334_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1093/gji/ggaa421_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1186/s40623-024-02032-5_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"},{"@type":"CROSSREF","@value":"10.1029/2023jb028523_references_DOI_T3BPDRsTD1dUFFv8ezV6OPwmGn2"}]}