| DOI: | 10.1002/2015GL067084
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| 论文题名: | Subpatch roughness in earthquake rupture investigations |
| 作者: | Zielke O.; Mai P.M.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9289
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| EISSN: | 1944-9020
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| 出版年: | 2016
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| 卷: | 43, 期:5 | | 起始页码: | 1893
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| 结束页码: | 1900
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| 语种: | 英语
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| 英文关键词: | earthquake rupture simulations
; fault roughness
; slip-strain relationship
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| Scopus关键词: | Earthquakes
; Geophysics
; Stochastic systems
; Earthquake rupture
; Fractal characteristics
; Geometric complexity
; Numerical parameters
; Regression function
; Slip strains
; Statistical effects
; Stochastic effects
; Faulting
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| 英文摘要: | Fault geometric complexities exhibit fractal characteristics over a wide range of spatial scales (<μm to > km) and strongly affect the rupture process at corresponding scales. Numerical rupture simulations provide a framework to quantitatively investigate the relationship between a fault's roughness and its seismic characteristics. Fault discretization, however, introduces an artificial lower limit to roughness. Individual fault patches are planar and subpatch roughness-roughness at spatial scales below fault patch size-is not incorporated. Does negligence of subpatch roughness measurably affect the outcome of earthquake rupture simulations? We approach this question with a numerical parameter space investigation and demonstrate that subpatch roughness significantly modifies the slip-strain relationship- A fundamental aspect of dislocation theory. Faults with subpatch roughness induce less strain than their planar-fault equivalents at distances beyond the length of a slipping fault. We further provide regression functions that characterize the stochastic effect subpatch roughness. © 2016. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959568445&doi=10.1002%2f2015GL067084&partnerID=40&md5=1c23333622584f70229bf3d45f3cebee
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10252
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Earth Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
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| Recommended Citation: | |
Zielke O.,Mai P.M.. Subpatch roughness in earthquake rupture investigations[J]. Geophysical Research Letters,2016-01-01,43(5).
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