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?
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- 資料種別
- 記事
- 著者・編者
- Yuki MiyakeHiroyuki Noda
- 出版年月日等
- 2019-12-05
- 出版年（W3CDTF）
- 2019-12-05
- タイトル（掲載誌）
- EPS : Earth, Planets and Space
- 巻号年月日等（掲載誌）
- 71(137)
- 掲載巻
- 71(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/s40623-019-1113-8
- 国立国会図書館永続的識別子
- info:ndljp/pid/11467682
- コレクション（共通）
- コレクション（障害者向け資料：レベル1）
- 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
- 収集根拠
- オンライン資料収集制度
- 受理日（W3CDTF）
- 2020-03-23T18:58:42+09:00
- 保存日（W3CDTF）
- 2020-03-23
- 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（国立国会図書館永続的識別子）
- info:ndljp/pid/11245705
- 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
- 要約等
- Along subduction interfaces or some major faults, a seismogenic layer in the upper crust is underlain by a zone of slow-slip events (SSEs) and tremors, and seismicity disappears at greater depths. The transition between seismogenic and aseismic behavior may be caused by changes in the frictional properties of the fault or changes in viscoelastic properties of the surrounding medium. Although aseismic transients have been numerically generated in previous studies by changing the frictional properties and compared to SSEs, the effect of viscoelasticity on the transition remains to be studied. In this study, we implemented interseismic viscoelastic stress relaxation in a simulation code for two-dimensional antiplane fully dynamic earthquake sequences in a uniform elastic material based on a spectral boundary integral equation method. In the implementation, we developed a suitable algorithm in which the viscoelastic relaxation is calculated by evolution of an “effective slip, ” which gives viscoelastic stress change on the fault if convolved with a static Green’s function. We conducted parametric studies for a fault with a rate-weakening patch on two parameters: viscoelastic relaxation time t[c] and characteristic length of the state evolution in the rate- and state-dependent friction law L. The behavior of the simulated fault can be classified into four classes, earthquakes (EQ), aseismic transients (AT), stable sliding (SS), and stuck (ST), in which the central part of the rate-weakening patch has a diminishingly small slip rate and is permanently locked. A phase diagram of the fault behavior shows that there are two different types of seismogenic–aseismic transition. As L increases, an EQ patch changes to an AT patch before becoming an SS patch, as has been reported in previous studies in an elastic limit. The boundary between AT and SS can be explained via linear stability analysis of a system composed of a spring, a dashpot, and sliders. As t[c] decreases, the recurrence interval of the earthquakes diverges, and an EQ patch changes to an ST patch unless L is within a narrow range. Therefore, the transition associated with SSEs and tremors is dominated by changes in frictional properties rather than changes in viscoelastic properties.
- DOI
- 10.1186/s40623-019-1113-8
- 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) 2019.This article is distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
- 関連情報（URI）
- 参照
- Homoclinic bifurcation of a rate-weakening patch in a viscoelastic medium and effect of strength contrastDynamic earthquake sequence simulation with a SBIEM without periodic boundariesComparison of two time-marching schemes for dynamic rupture simulation with a space-domain BIEMViscoelasticity modeling of clay minerals by dynamic viscoelasticity measurement and its implications for earthquake faultingDynamic earthquake sequence simulation with an SBIEM accounting for interseismic poroelastic reboundSpecial issue "Crustal dynamics : toward integrated view of island arc seismogenesis
- 参照
- Connecting slow earthquakes to large earthquakesIntraplate Strike‐Slip Faulting, Stress Accumulation, and Shear Localization of a Crust‐Upper Mantle System With Nonlinear Viscoelastic MaterialUnder what circumstances does a seismogenic patch produce aseismic transients in the later interseismic period?Scaling of earthquake rupture growth in the Parkfield area: Self‐similar growth and suppression by the finite seismogenic layerSpontaneous and triggered aseismic deformation transients in a subduction fault modelFocal depths of intracontinental and intraplate earthquakes and their implications for the thermal and mechanical properties of the lithosphereFriction on subduction megathrust faults: Beyond the illite–muscovite transitionA numerical method for elastic and viscoelastic dynamic fracture problems in homogeneous and bimaterial systemsEarthquake model experiments in a viscoelastic fluid: A scaling of decreasing magnitudes of earthquakes with depthEarthquake cycle simulations with rate-and-state friction and power-law viscoelasticitySlow Earthquakes and Nonvolcanic TremorThe Parkfield tremors reveal slow and fast ruptures on the same asperitySlip instability and state variable friction lawsEarthquake nucleation on (aging) rate and state faultsTransition Between Frictional Slip and Ductile Flow for Halite Shear Zones at Room TemperatureNon-volcanic tremor and low-frequency earthquake swarmsPrecise tremor source locations and amplitude variations along the lower‐crustal central San Andreas FaultLithospheric loading by the 1896 Riku‐u Earthquake, northern Japan: Implications for plate flexure and asthenospheric rheologyAseismic slip transients emerge spontaneously in three‐dimensional rate and state modeling of subduction earthquake sequencesThe brittle-plastic transition and the depth of seismic faultingRelative contributions of crustal temperature and composition to controlling the depth of earthquakes in Southern CaliforniaThree‐dimensional earthquake sequence simulations with evolving temperature and pore pressure due to shear heating: Effect of heterogeneous hydraulic diffusivitySpatio‐temporal complexity of slip on a faultScaling of small repeating earthquakes explained by interaction of seismic and aseismic slip in a rate and state fault modelElastodynamic analysis for slow tectonic loading with spontaneous rupture episodes on faults with rate‐ and state‐dependent frictionThree‐dimensional boundary integral modeling of spontaneous earthquake sequences and aseismic slipModeling of rock friction: 1. Experimental results and constitutive equationsA slow thrust slip event following the two 1996 Hyuganada Earthquakes beneath the Bungo Channel, southwest JapanContribution of viscoelastic flow in earthquake cycles within the lithosphere‐asthenosphere systemThermal constraints on the zone of major thrust earthquake failure: The Cascadia Subduction ZoneFrictional sliding of gabbro gouge under hydrothermal conditionsMechanism of deep low frequency earthquakes: Further evidence that deep non‐volcanic tremor is generated by shear slip on the plate interfaceSlow slip events in the roots of the San Andreas faultRate and state dependent friction and the stability of sliding between elastically deformable solidsRegular to chaotic transition of stick–slip motion in sliding friction of an adhesive gel-sheetFault stability inferred from granite sliding experiments at hydrothermal conditionsTemperature distribution and focal depth in the crust of the northeastern JapanSeismic cycle on a strike-slip fault with rate- and state-dependent strength in an elastic layer overlying a viscoelastic half-space
- 連携機関・データベース
- 国立情報学研究所 : CiNii Research
- 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雑誌記事索引データベースCrossref科学研究費助成事業データベースCrossrefCrossrefCrossrefCrossrefCrossrefCrossref
- 書誌ID（NDLBibID）
- 11467682