DOI: 10.1002/2016GL070815
论文题名: A new paradigm for large earthquakes in stable continental plate interiors
作者: Calais E. ; Camelbeeck T. ; Stein S. ; Liu M. ; Craig T.J.
刊名: Geophysical Research Letters
ISSN: 0094-8511
EISSN: 1944-8242
出版年: 2016
卷: 43, 期: 20 起始页码: 10621
结束页码: 10637
语种: 英语
英文关键词: earthquakes
; intraplate
Scopus关键词: Fault slips
; Fault slips
; Faulting
; Faulting
; Geophysics
; Geophysics
; Plates (structural components)
; Plates (structural components)
; Seismology
; Seismology
; Strain rate
; Strain rate
; Tectonics
; Tectonics
; Appropriate models
; Appropriate models
; Failure thresholds
; Failure thresholds
; Geological structures
; Geological structures
; Intraplate
; intraplate
; Spatial and temporal patterns
; Spatial and temporal patterns
; Stable continental regions
; Stable continental regions
; Strain accumulations
; Strain accumulations
; Transient perturbation
; Transient perturbation
; Earthquakes
; Earthquakes
; Sugarcane Ramu stunt disease phytoplasma
英文摘要: Large earthquakes within stable continental regions (SCR) show that significant amounts of elastic strain can be released on geological structures far from plate boundary faults, where the vast majority of the Earth's seismic activity takes place. SCR earthquakes show spatial and temporal patterns that differ from those at plate boundaries and occur in regions where tectonic loading rates are negligible. However, in the absence of a more appropriate model, they are traditionally viewed as analogous to their plate boundary counterparts, occurring when the accrual of tectonic stress localized at long-lived active faults reaches failure threshold. Here we argue that SCR earthquakes are better explained by transient perturbations of local stress or fault strength that release elastic energy from a prestressed lithosphere. As a result, SCR earthquakes can occur in regions with no previous seismicity and no surface evidence for strain accumulation. They need not repeat, since the tectonic loading rate is close to zero. Therefore, concepts of recurrence time or fault slip rate do not apply. As a consequence, seismic hazard in SCRs is likely more spatially distributed than indicated by paleoearthquakes, current seismicity, or geodetic strain rates. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991481804&doi=10.1002%2f2016GL070815&partnerID=40&md5=cc13efc662488f6608d299cb7bb3b0ae
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9474
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 Geosciences, Ecole normale supérieure, PSL Research University, Paris, France
Recommended Citation:
Calais E.,Camelbeeck T.,Stein S.,et al. A new paradigm for large earthquakes in stable continental plate interiors[J]. Geophysical Research Letters,2016-01-01,43(20).