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  4. 岩石圈演化国家重点实验室
How Long Can the Postseismic and Interseismic Phases of Great Subduction Earthquake Sustain? Toward an Integrated Earthquake-Cycle Perspective

文献类型：期刊论文

作者Li, Shaoyang2; Chen, Ling1,2
刊名GEOPHYSICAL RESEARCH LETTERS
出版日期2023-06-16
卷号50期号:11页码:12
ISSN号0094-8276
DOI10.1029/2023GL103976
英文摘要The transition of subduction systems from postseismic to interseismic phase is an important indicator of their stress state and readiness for subsequent events. However, understanding the dynamics of this transition of megathrust earthquakes is hindered by the short instrumental time compared to the centuries-long recurrence interval (T). Here, with an updated earthquake-cycle perspective of global spatiotemporally limited geodetic observations, we use generic viscoelastic earthquake-cycle models to explore the evolution of time-varying surface deformation. Self-consistently, our models reproduce key observed features of the deformation cycle, suggesting common processes activated at different margins. The relative postseismic and interseismic durations are found dependent mainly nonlinearly on the ratio of T to mantle viscosity, with a plausible range of similar to 0.2-0.4T at representative margins and minimum >0.55T, respectively. Our results thus provide a useful tool for understanding the similarities and differences of earthquake-cycle deformation and guiding monitoring of possible future signals at world-wide subduction zones.
WOS关键词2011 TOHOKU-OKI ; CRUSTAL DEFORMATION ; VISCOELASTIC RELAXATION ; DISLOCATION MODEL ; MEGATHRUST EARTHQUAKES ; SOUTHWEST JAPAN ; RUPTURE LENGTH ; NANKAI TROUGH ; ZONE ; PLATE
资助项目National Natural Science Foundation of China[42288201]
WOS研究方向Geology
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:001002472600001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110976]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Li, Shaoyang
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Li, Shaoyang,Chen, Ling. How Long Can the Postseismic and Interseismic Phases of Great Subduction Earthquake Sustain? Toward an Integrated Earthquake-Cycle Perspective[J]. GEOPHYSICAL RESEARCH LETTERS,2023,50(11):12.
APA Li, Shaoyang,&Chen, Ling.(2023).How Long Can the Postseismic and Interseismic Phases of Great Subduction Earthquake Sustain? Toward an Integrated Earthquake-Cycle Perspective.GEOPHYSICAL RESEARCH LETTERS,50(11),12.
MLA Li, Shaoyang,et al."How Long Can the Postseismic and Interseismic Phases of Great Subduction Earthquake Sustain? Toward an Integrated Earthquake-Cycle Perspective".GEOPHYSICAL RESEARCH LETTERS 50.11(2023):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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