Detection of plastic strain using GNSS data of pre- and post-seismic deformation of the 2011 Tohoku-oki earthquake

• 資料種別: 記事
• タイトル: Detection of plastic strain using GNSS data of pre- and post-seismic deformation of the 2011 Tohoku-oki earthquake
• 著者・編者: Yukitoshi Fukahata; Angela Meneses-Gutierrez; Takeshi Sagiya
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2020-02-13
• 出版年（W3CDTF）: 2020-02-13
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 72(18)
• 掲載巻: 72(18)
• ISSN（掲載誌）: 1880-5981
• ISSN-L（掲載誌）: 1343-8832
• 本文の言語コード: eng
• DOI: 10.1186/s40623-020-1144-1; https://doi.org/10.1186/s40623-020-1144-1
• 国立国会図書館永続的識別子: info:ndljp/pid/11467711; https://dl.ndl.go.jp/pid/11467711
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• 受理日（W3CDTF）: 2020-03-23T18:58:42+09:00
• 保存日（W3CDTF）: 2020-03-23
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• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11467692; https://dl.ndl.go.jp/pid/11467692
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• 要約等: In general, there are three mechanisms causing crustal deformation: elastic, viscous, and plastic deformation. The separation of observed crustal deformation to each component has been a challenging problem. In this study, we succeed in separating plastic deformation as well as viscous deformation in the northern Niigata–Kobe Tectonic Zone (NKTZ), central Japan, using GNSS data before and after the 2011 Tohoku-oki earthquake, under the assumptions that elastic deformation is principally caused by the plate coupling along the Japan trench and that plastic deformation ceased after the Tohoku-oki earthquake due to the stress drop caused by the earthquake. The cessation of plastic deformation can be understood with the concept of stress shadow used in the field of seismic activity. The separated strain rates are about 30 nanostrain/year both for the plastic deformation in the preseismic period and for the viscous deformation in both the pre- and post-seismic periods, which means that the inelastic strain rate in the northern NKTZ is about 60 and 30 nanostrain/year in the pre- and post-seismic periods, respectively. This result requires the revision of the strain-rate paradox in Japan. The strain rate was exceptionally faster before the Tohoku-oki earthquake due to the effect of plastic strain, and the discrepancy between the geodetic and geologic strain rates is much smaller in usual time, when the plastic strain is off. In order to estimate the onset timing of plastic deformation, the information on stress history is essentially important.
• DOI: 10.1186/s40623-020-1144-1; https://doi.org/10.1186/s40623-020-1144-1; 10.5194/egusphere-egu2020-12803; https://doi.org/10.5194/egusphere-egu2020-12803
• オンライン閲覧公開範囲: インターネット公開
• 著作権情報: © The Author(s) 2020.; This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
• 関連情報（URI）: http://hdl.handle.net/2433/265335; http://id.ndl.go.jp/digimeta/11467711; https://dl.ndl.go.jp/pid/11467711; http://link.springer.com/content/pdf/10.1186/s40623-020-1144-1.pdf; http://link.springer.com/article/10.1186/s40623-020-1144-1/fulltext.html
• 参照: Azimuthal differences and changes in strain rate and stress of the Japanese Islands deduced from geophysical data; https://cir.nii.ac.jp/crid/1050293710890939264; Spatiotemporal changes in the strain field in the Niigata–Kobe Tectonic Zone: long-term analysis using GNSS time series data; https://cir.nii.ac.jp/crid/1050585172435286656; Geodetic data inversion to estimate a strain-rate field by introducing sparse modeling; https://cir.nii.ac.jp/crid/1050866882758946304; Geodetic and Geological Deformation of the Island Arc in Northeast Japan Revealed by the 2011 Tohoku Earthquake; https://cir.nii.ac.jp/crid/1360861287035222144; GNSSデータに基づく日本列島の歪み速度場と島弧間および島弧内変動; https://cir.nii.ac.jp/crid/1390294045393167872; 基底関数展開による変位場推定におけるボックスカー関数と3次B-スプライン関数の比較; https://cir.nii.ac.jp/crid/1390573715152519296; Special issue "Crustal dynamics : toward integrated view of island arc seismogenesis; https://cir.nii.ac.jp/crid/2050870367078659712; Consistent estimation of strain-rate fields from GNSS velocity data using basis function expansion with ABIC; https://cir.nii.ac.jp/crid/2051433317034586368
• 参照: Strain anomalies induced by the 2011 Tohoku Earthquake (; https://cir.nii.ac.jp/crid/1050025031479798400; Afterslip and viscoelastic relaxation following the 2011 Tohoku earthquake (Mw9.0) inferred from inland GPS and seafloor GPS/Acoustic data; https://cir.nii.ac.jp/crid/1050564285766891264; Long‐term changes in the Coulomb failure function on inland active faults in southwest Japan due to east‐west compression and interplate earthquakes; https://cir.nii.ac.jp/crid/1050564288756018432; Estimate of the contraction rate of central Japan through the deformation of the Philippine Sea slab; https://cir.nii.ac.jp/crid/1050845763140670720; Widespread seismicity excitation throughout central Japan following the 2011 M=9.0 Tohoku earthquake and its interpretation by Coulomb stress transfer; https://cir.nii.ac.jp/crid/1360004233288139392; Stress before and after the 2011 great Tohoku‐oki earthquake and induced earthquakes in inland areas of eastern Japan; https://cir.nii.ac.jp/crid/1360004233288308864; Deformation of an island arc: Rates of moment release and crustal shortening in intraplate Japan determined from seismicity and Quaternary fault data; https://cir.nii.ac.jp/crid/1360011146458434816; Continuous GPS Array and Present-day Crustal Deformation of Japan; https://cir.nii.ac.jp/crid/1360013170949096064; Changes in seismic activity following the 2011 Tohoku-oki earthquake: Effects of pore fluid pressure; https://cir.nii.ac.jp/crid/1360283690892926848; New, improved version of generic mapping tools released; https://cir.nii.ac.jp/crid/1360292617909532032; Source mechanisms and tectonic significance of historical earthquakes along the nankai trough, Japan; https://cir.nii.ac.jp/crid/1360292617916830848; Quantifying crustal extension and shortening in the back‐arc region of Northeast Japan; https://cir.nii.ac.jp/crid/1360565166662444032; Persistent inelastic deformation in central Japan revealed by GPS observation before and after the Tohoku-oki earthquake; https://cir.nii.ac.jp/crid/1360567182088900992; A comprehensive model of postseismic deformation of the 2004 Sumatra–Andaman earthquake deduced from GPS observations in northern Sumatra; https://cir.nii.ac.jp/crid/1360567182278007936; Crustal Deformation Process in the Mid‐Niigata Region of the Niigata‐Kobe Tectonic Zone as Observed by Dense GPS Network Before, During, and After the Tohoku‐Oki Earthquake; https://cir.nii.ac.jp/crid/1360848658222202752; Physics-based GPS data inversion to estimate three-dimensional elastic and inelastic strain fields; https://cir.nii.ac.jp/crid/1360855570637905408; Spatiotemporal distribution of interplate coupling in southwest Japan from inversion of geodetic data; https://cir.nii.ac.jp/crid/1361699996203426560; Geodetic data inversion using ABIC to estimate slip history during one earthquake cycle with viscoelastic slip-response functions; https://cir.nii.ac.jp/crid/1362544419507469184; Crustal deformation across and beyond the Los Angeles basin from geodetic measurements; https://cir.nii.ac.jp/crid/1363107369957321600; Intra-plate seismicity and inter-plate earthquakes: Historical activity in Southwest Japan; https://cir.nii.ac.jp/crid/1363388845369730048; A physical mechanism for temporal variation in seismicity in Southwest Japan related to the great interplate earthquakes along the Nankai trough; https://cir.nii.ac.jp/crid/1363951793951065472; Quasi-static internal deformation due to a dislocation source in a multilayered elastic/viscoelastic half-space and an equivalence theorem; https://cir.nii.ac.jp/crid/1364233270648820864; 測地測量により求めた日本列島の地震間の平均的な地殻水平歪速度 (I); https://cir.nii.ac.jp/crid/1390001204305419392; Space-time pattern of large earthquakes occurring off the Pacific coast of the Japanese Islands.; https://cir.nii.ac.jp/crid/1390001206510717696; A statistical model of temporal variation of seismicity in the inner zone of southwest Japan related to the great interplate earthquakes along the Nankai Trough; https://cir.nii.ac.jp/crid/1390001206510893952
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: 学術機関リポジトリデータベース; https://irdb.nii.ac.jp; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles; 科学研究費助成事業データベース; https://kaken.nii.ac.jp/ja
• 書誌ID（NDLBibID）: 11467711; http://id.ndl.go.jp/bib/11467711
• NII論文ID: 120007153084