{"@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/1360021390745892992.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1093/gji/ggae033"}},{"identifier":{"@type":"URI","@value":"https://academic.oup.com/gji/advance-article-pdf/doi/10.1093/gji/ggae033/56346777/ggae033.pdf"}},{"identifier":{"@type":"URI","@value":"https://academic.oup.com/gji/article-pdf/237/1/49/56613275/ggae033.pdf"}},{"identifier":{"@type":"DOI","@value":"10.21203/rs.3.rs-2351814/v1"}},{"identifier":{"@type":"URI","@value":"https://www.researchsquare.com/article/rs-2351814/v1"}},{"identifier":{"@type":"URI","@value":"https://www.researchsquare.com/article/rs-2351814/v1.html"}},{"identifier":{"@type":"DOI","@value":"10.21203/rs.3.rs-2351814/v2"}},{"identifier":{"@type":"DOI","@value":"10.21203/rs.3.rs-2351814/v4"}},{"identifier":{"@type":"DOI","@value":"10.21203/rs.3.rs-2351814/v3"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Detectability analysis of very low frequency earthquakes: methods and application in Nankai using F-net and DONET broad-band seismometers"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>SUMMARY</jats:title>\n               <jats:p>For a more quantitative discussion of slow earthquake activity, we evaluated the detectable limits of very low frequency earthquakes (VLFEs), which are seismic slow earthquakes observed in very low-frequency (&lt; 0.05 Hz) bands in the Nankai subduction zone. We performed numerical simulations using a local 3-D model and used the observed noise level of permanent broad-band seismometers. First, we investigated the effects of the source-time functions on the maximum amplitudes of the VLFE signals at a certain station. The maximum amplitudes of the VLFE signals were controlled by the VLFE moment rate. The detectable limit of VLFEs at each source location can be defined as the lowest moment rate of detectable VLFEs, which radiate signals larger than the noise levels of any component at ≥ 3 stations. For inland seismometers only, the detectable limits of VLFEs at deep (30–40 km) and shallow (≤ 10 km) depths were 1012–1012.3 and 1012.7 N·m s−1, respectively. Due to the geometrical spreading of VLFE signals and large noise levels in horizontal components, offshore seismometers improved the detectability of shallow VLFEs in regions where seismometers were densely deployed. Based on our detectability and published catalogues, shallow slow earthquakes are less active south-southwest off the Kii Peninsula, where geodetic studies expect mechanical coupling.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420564276171016704","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"10750200"},{"@type":"NRID","@value":"1000010750200"},{"@type":"NRID","@value":"9000006489248"},{"@type":"NRID","@value":"9000240092418"},{"@type":"NRID","@value":"9000401900303"},{"@type":"NRID","@value":"9000016802506"},{"@type":"NRID","@value":"9000414332557"},{"@type":"NRID","@value":"9000293837210"},{"@type":"NRID","@value":"9000412340045"},{"@type":"NRID","@value":"9000345327356"},{"@type":"NRID","@value":"9000396165753"},{"@type":"NRID","@value":"9000309173214"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/shunsuke-0328"}],"foaf:name":[{"@value":"Shunsuke Takemura"}],"jpcoar:affiliationName":[{"@value":"Earthquake Research Institute, the University of Tokyo , 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032 , Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021390745893018","@type":"Researcher","foaf:name":[{"@value":"Satoru Baba"}],"jpcoar:affiliationName":[{"@value":"Japan Agency for Marine-Earth Science and Technology , 2-15, Natsushima-cho, Yokosuka Kanagawa 237-0061 , Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021390745892875","@type":"Researcher","foaf:name":[{"@value":"Suguru Yabe"}],"jpcoar:affiliationName":[{"@value":"Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology , Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567 , Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1420564276189860224","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"80725052"},{"@type":"NRID","@value":"1000080725052"},{"@type":"ORCID","@value":"0000-0002-5347-5216"},{"@type":"NRID","@value":"9000370253958"},{"@type":"NRID","@value":"9000413695848"},{"@type":"NRID","@value":"9000375860111"},{"@type":"NRID","@value":"9000410904572"},{"@type":"NRID","@value":"9000261679987"},{"@type":"NRID","@value":"9000413694877"},{"@type":"NRID","@value":"9000400157713"},{"@type":"NRID","@value":"9000336038583"},{"@type":"NRID","@value":"9000406049319"},{"@type":"NRID","@value":"9000382633873"},{"@type":"NRID","@value":"9000411489603"},{"@type":"NRID","@value":"9000408782896"},{"@type":"NRID","@value":"9000399764690"},{"@type":"NRID","@value":"9000408456846"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/7000013545"}],"foaf:name":[{"@value":"Yusuke Yamashita"}],"jpcoar:affiliationName":[{"@value":"Miyazaki Observatory, Disaster Prevention Research Institute, Kyoto University , 3884 Kaeda, Miyazaki 889-2161 , Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021390745893020","@type":"Researcher","foaf:name":[{"@value":"Katsuhiko Shiomi"}],"jpcoar:affiliationName":[{"@value":"National Research Institute for Earth Science and Disaster Resilience , 3-1 Tennodai, Tsukuba, Ibaraki 305-0006 , Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021390745893040","@type":"Researcher","foaf:name":[{"@value":"Takanori Matsuzawa"}],"jpcoar:affiliationName":[{"@value":"National Research Institute for Earth Science and Disaster Resilience , 3-1 Tennodai, Tsukuba, Ibaraki 305-0006 , Japan"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0956540X"},{"@type":"EISSN","@value":"1365246X"}],"prism:publicationName":[{"@value":"Geophysical Journal International"}],"dc:publisher":[{"@value":"Oxford University Press (OUP)"}],"prism:publicationDate":"2024-01-23","prism:volume":"237","prism:number":"1","prism:startingPage":"49","prism:endingPage":"63"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://academic.oup.com/gji/advance-article-pdf/doi/10.1093/gji/ggae033/56346777/ggae033.pdf"},{"@id":"https://academic.oup.com/gji/article-pdf/237/1/49/56613275/ggae033.pdf"},{"@id":"https://www.researchsquare.com/article/rs-2351814/v1"},{"@id":"https://www.researchsquare.com/article/rs-2351814/v1.html"}],"createdAt":"2024-01-24","modifiedAt":"2024-02-07","project":[{"@id":"https://cir.nii.ac.jp/crid/1040008389832231168","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21H05206"},{"@type":"JGN","@value":"JP21H05206"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-21H05206/"}],"notation":[{"@language":"ja","@value":"時空間マルチスケールモデルからの予測：大規模計算とSlow-to-Fast地震学"},{"@language":"en","@value":"Spatio-temporal multiscale modeling and forecast of slow and fast earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1040289864809883776","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21H05205"},{"@type":"JGN","@value":"JP21H05205"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-21H05205/"}],"notation":[{"@language":"ja","@value":"情報科学と地球物理学の融合によるSlow-to-Fast地震現象の包括的理解"},{"@language":"en","@value":"Data-driven discovery and monitoring of Slow-to-Fast Earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1040295802071683328","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23K03537"},{"@type":"JGN","@value":"JP23K03537"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K03537/"}],"notation":[{"@language":"ja","@value":"日向灘M8級巨大地震の正体は？融合的アプローチによる地震発生様式の解明"},{"@language":"en","@value":"What is the identity of the Hyuga-nada M8 class great earthquake? A fusion approach to understanding the occurrence pattern of earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1040848250657637248","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"20K14579"},{"@type":"JGN","@value":"JP20K14579"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K14579/"}],"notation":[{"@language":"ja","@value":"過去データを活用した地震活動モニタリングシステムの構築：次の日向灘地震に向けて"},{"@language":"en","@value":"Development of a seismic activity monitoring system using historical data: Toward the next Hyuga-nada earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1040850857191487744","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21K03696"},{"@type":"JGN","@value":"JP21K03696"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K03696/"}],"notation":[{"@language":"ja","@value":"プレート境界浅部および深部で発生する微動の活動様式の定量把握に関する研究"},{"@language":"en","@value":"Quantitative evaluation of activity characteristics of shallow and deep tectonic tremors"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050001338452605568","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Development of a Slow Earthquake Database"}]},{"@id":"https://cir.nii.ac.jp/crid/1050001339107234432","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Connecting slow earthquakes to huge earthquakes"},{"@value":"Connecting slow earthquakes to large earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1050011086237001728","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Shallow tectonic tremor activities in Hyuga-nada, Nankai subduction zone, based on long-term broadband ocean bottom seismic 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