{"@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/1362825895017956096.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1029/2011jb008639"}},{"identifier":{"@type":"URI","@value":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2011JB008639"}},{"identifier":{"@type":"URI","@value":"http://www.agu.org/journals/jb/jb1112/2011JB008639/2011JB008639.pdf"}}],"dc:title":[{"@value":"Geological evidence of recurrent great Kanto earthquakes at the Miura Peninsula, Japan"}],"description":[{"notation":[{"@value":"[1] The Tokyo metropolitan area's well-documented earthquake history is dominated by the 1703 and 1923 great Kanto earthquakes produced by slip on the boundary between the subducting Philippine Sea plate and the overlying plate. Both earthquakes caused ∼1.5 m of uplift at the Miura Peninsula directly above the inferred fault rupture, and both were followed by tsunamis with heights of ∼5 m. We examined cores ∼2 m long from 8 tidal flat sites at the head of a small bay on the peninsula. The cores penetrated two to four layers of shelly gravel, as much as 0.5 m thick, with abundant shell fragments and mud clasts. The presence of gravel indicates strong tractive currents. Muddy bay deposits that bound the gravel layers show vertical changes in grain size and diatom assemblages consistent with abrupt shoaling at the times of the currents. The changes may further suggest gradual deepening of the bay during the intervals between the strong currents. We infer, based on 137Cs, 14C, and 210Pb dating, that the top two shelly gravel layers represent tsunamis associated with the 1703 and 1923 great Kanto earthquakes, and that the third layer was deposited by a tsunami during an earlier earthquake. The age range of this layer, AD 1060–1400, includes the time of an earthquake that occurred in 1293 according to a historical document. If so, the recurrence interval before the 1703 earthquake was almost twice as long as the interval between the 1703 and 1923 earthquakes."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285711829044487","@type":"Researcher","foaf:name":[{"@value":"K. Shimazaki"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895017956096","@type":"Researcher","foaf:name":[{"@value":"H. Y. Kim"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895017956097","@type":"Researcher","foaf:name":[{"@value":"T. Chiba"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825895017956099","@type":"Researcher","foaf:name":[{"@value":"K. Satake"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"01480227"}],"prism:publicationName":[{"@value":"Journal of Geophysical Research"}],"dc:publisher":[{"@value":"American Geophysical Union (AGU)"}],"prism:publicationDate":"2011-12-30","prism:volume":"116","prism:number":"B12","prism:startingPage":"B12408"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["http://doi.wiley.com/10.1002/tdm_license_1.1"],"url":[{"@id":"https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2011JB008639"},{"@id":"http://www.agu.org/journals/jb/jb1112/2011JB008639/2011JB008639.pdf"}],"createdAt":"2011-10-24","modifiedAt":"2021-07-19","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050293710890939264","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Azimuthal differences and changes in strain rate and stress of the Japanese Islands deduced from geophysical data"}]},{"@id":"https://cir.nii.ac.jp/crid/1360021391886717440","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Introduction to the Special Section for the Centennial of the Great 1923 Kanto, Japan, Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283691040755584","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Historical tsunami and storm deposits during the last five centuries on the Sanriku coast, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360283692753624448","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geological and historical evidence of irregular recurrent earthquakes in Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360286991783456768","@type":"Article","resourceType":"学術雑誌論文(journal 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along the eastern Nankai Trough and Sagami Trough, Pacific coast of central Japan"},{"@language":"ja","@value":"Traces of paleo-earthquakes and tsunamis along the eastern Nankai Trough and Sagami Trough, Pacific coast of central Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390016681646449152","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Great Interplate Sagami Trough, Japan, Earthquake in the 15th Century as Seen from Historiographical Seismology: Examination of the 1433 Eikyo and 1495 Meio earthquakes"},{"@language":"ja","@value":"史料地震学からみた15世紀の相模トラフ巨大地震"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679213252224","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Tokyo Lowland and Chuseki-so"},{"@language":"ja","@value":"東京低地と沖積層"},{"@value":"東京低地と沖積層 : 軟弱地盤の形成と縄文海進"},{"@language":"ja-Kana","@value":"トウキョウ テイチ ト チュウセキソウ : ナンジャク ジバン ノ ケイセイ ト ジョウモンカイ シン"},{"@value":"Tokyo lowland and chuseki-so: formation of the soft ground and jomon transgression"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282680336130560","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"M8クラス関東地震発生確率の不確定性について"},{"@language":"en","@value":"Long-term Probability of the Kanto M8 Earthquake along the Sagami Trough, Central Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681218549120","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Study on paleotsunami deposits in geologic stratum"},{"@language":"ja","@value":"地層中に存在する古津波堆積物の調査"},{"@language":"ja-Kana","@value":"チソウ チュウ ニ ソンザイ スル コ ツナミ タイセキブツ ノ チョウサ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390297305329235840","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Reconsideration of Urbanization in Tokyo Metropolitan Area Since 1923 Great 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records"},{"@language":"ja","@value":"九十九里浜平野旧片貝村における1703年元禄関東地震津波の史料と地質記録による検証"}]},{"@id":"https://cir.nii.ac.jp/crid/1390862555421298688","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Historical Interplate Earthquakes along the Sagami Trough Inferred from Tsunami Records and Geological Traces in the Sagami Bay Area"},{"@language":"ja","@value":"相模湾周辺における津波史料と地質痕跡から推定される歴史時代の相模トラフプレート間地震"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942138431360","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Geologic evidence for coseismic uplift at ~ AD 400 in coastal lowland deposits on the Shimizu Plain, central Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/2050025942192120192","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"The source model and recurrence interval of Genroku-type Kanto 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