Dynamic earthquake sequence simulation with a SBIEM without periodic boundaries

• 資料種別: 記事
• タイトル: Dynamic earthquake sequence simulation with a SBIEM without periodic boundaries
• 著者・編者: Hiroyuki Noda
• 出版事項: 日本 : Springer Nature
• 出版年月日等: 2021-07-05
• 出版年（W3CDTF）: 2021-07-05
• タイトル（掲載誌）: EPS : Earth, Planets and Space
• 巻号年月日等（掲載誌）: 73(137)
• 掲載巻: 73(137)
• 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/s40623-021-01465-6; https://doi.org/10.1186/s40623-021-01465-6
• 国立国会図書館永続的識別子: info:ndljp/pid/11740895; https://dl.ndl.go.jp/pid/11740895
• コレクション（共通）: 障害者向け資料
• コレクション（障害者向け資料：レベル1）: テキストデータ
• コレクション（個別）: 国立国会図書館デジタルコレクション > 電子書籍・電子雑誌 > その他; https://dl.ndl.go.jp/collections/B00035
• 収集根拠: オンライン資料収集制度
• 受理日（W3CDTF）: 2021-10-05T00:13:24+09:00
• 保存日（W3CDTF）: 2021-10-01
• 記録形式（IMT）: application/pdf
• オンライン閲覧公開範囲: 国立国会図書館内限定公開
• デジタル化資料送信: 図書館・個人送信対象外
• 遠隔複写可否（NDL）: 可
• 掲載誌（URI）: https://earth-planets-space.springeropen.com/articles
• 掲載誌（国立国会図書館永続的識別子）: info:ndljp/pid/11667897; https://dl.ndl.go.jp/pid/11667897
• 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: Dynamic earthquake sequence simulation is an important tool for investigating the behavior of a fault that hosts a series of earthquakes because it solves all interrelated stages in the earthquake cycle consistently, including nucleation, propagation and arrest of dynamic rupture, afterslip, locking, and interseismic stress accumulation. Numerically simulating and resolving these phenomena, which have different time and length scales, in a single framework is challenging. A spectral boundary integral equation method (SBIEM) that makes use of a fast Fourier transform is widely used because it reduces required computational costs, even though it can only be used for a planar fault. The conventional SBIEM has a periodic boundary condition as a result of the discretization of the wavenumber domain with a regular mesh; thus, to obtain an approximate solution for a fault in an infinite medium, it has been necessary to simulate a region much longer than the source distribution. Here, I propose a new SBIEM that is free from this artificial periodic boundary condition. In the proposed method, the periodic boundaries are removed by using a previously proposed method for the simulation of dynamic rupture. The integration kernel for the elastostatic effect, which reaches infinitely far from the source, is expressed analytically and replaces the one in the conventional SBIEM. The new method requires simulation of a region only twice as long as the source distribution, so the computational costs are significantly less than those required by the conventional SBIEM to simulate a fault in an infinite medium. The effect of the distance λ between the artificial periodic boundaries was investigated by comparing solutions for a typical problem setting between the conventional and proposed SBIEM. The result showed that the artificial periodic boundaries cause overestimation of the recurrence interval that is proportional to λ⁻². If λ is four times the fault length, the interval is overestimated by less than 1%. Thus, the artificial periodic boundaries have only a modest effect on the conclusions of previous studies.
• DOI: 10.1186/s40623-021-01465-6; https://doi.org/10.1186/s40623-021-01465-6
• 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) 2021.; 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/2433/274609; http://id.ndl.go.jp/digimeta/11740895; https://dl.ndl.go.jp/pid/11740895; https://link.springer.com/content/pdf/10.1186/s40623-021-01465-6.pdf; https://link.springer.com/article/10.1186/s40623-021-01465-6/fulltext.html
• 参照: Fully Dynamic Earthquake Cycle Simulations on a Nonplanar Fault Using the Spectral Boundary Integral Element Method (sBIEM); https://cir.nii.ac.jp/crid/1360857593726320384; Dynamic earthquake sequence simulation with an SBIEM accounting for interseismic poroelastic rebound; https://cir.nii.ac.jp/crid/2050588892108505088
• 参照: Fully dynamic earthquake sequence simulation of a fault in a viscoelastic medium using a spectral boundary integral equation method: does interseismic stress relaxation promote aseismic transients?; https://cir.nii.ac.jp/crid/1050303932805506432; Large nucleation before large earthquakes is sometimes skipped due to cascade‐up—Implications from a rate and state simulation of faults with hierarchical asperities; https://cir.nii.ac.jp/crid/1360011143608111360; A NUMERICAL SCHEME FOR MODE III DYNAMIC FRACTURE PROBLEMS; https://cir.nii.ac.jp/crid/1360013171658094720; A friction to flow constitutive law and its application to a 2‐D modeling of earthquakes; https://cir.nii.ac.jp/crid/1360285704779166464; Slow-slip, slow earthquakes, period-two cycles, full and partial ruptures, and deterministic chaos in a single asperity fault; https://cir.nii.ac.jp/crid/1360292620298748544; Nucleation and early seismic propagation of small and large events in a crustal earthquake model; https://cir.nii.ac.jp/crid/1360574096366223616; A spectral method for three-dimensional elastodynamic fracture problems; https://cir.nii.ac.jp/crid/1361137044265506560; Slip complexity in earthquake fault models.; https://cir.nii.ac.jp/crid/1361418521143862016; Dynamic faulting under rate-dependent friction; https://cir.nii.ac.jp/crid/1361699994577564800; Slip instability and state variable friction laws; https://cir.nii.ac.jp/crid/1361699994601648128; Earthquake nucleation on (aging) rate and state faults; https://cir.nii.ac.jp/crid/1361981468574765696; A spectral method for numerical elastodynamic fracture analysis without spatial replication of the rupture event; https://cir.nii.ac.jp/crid/1361981469527035648; Three‐dimensional earthquake sequence simulations with evolving temperature and pore pressure due to shear heating: Effect of heterogeneous hydraulic diffusivity; https://cir.nii.ac.jp/crid/1362544420318058752; Scaling of small repeating earthquakes explained by interaction of seismic and aseismic slip in a rate and state fault model; https://cir.nii.ac.jp/crid/1362544420791062016; Stable creeping fault segments can become destructive as a result of dynamic weakening; https://cir.nii.ac.jp/crid/1362825893362465152; Elastodynamic analysis for slow tectonic loading with spontaneous rupture episodes on faults with rate‐ and state‐dependent friction; https://cir.nii.ac.jp/crid/1362825894005834752; Three‐dimensional boundary integral modeling of spontaneous earthquake sequences and aseismic slip; https://cir.nii.ac.jp/crid/1363107368669570048; Modeling of rock friction: 1. Experimental results and constitutive equations; https://cir.nii.ac.jp/crid/1363107370704764416
• 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; 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）: 11740895; http://id.ndl.go.jp/bib/11740895