globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.epsl.2018.07.043
Scopus记录号: 2-s2.0-85051264182
论文题名:
Dual control of fault intersections on stop-start rupture in the 2016 Central Italy seismic sequence
作者: Walters R.J.; Gregory L.C.; Wedmore L.N.J.; Craig T.J.; McCaffrey K.; Wilkinson M.; Chen J.; Li Z.; Elliott J.R.; Goodall H.; Iezzi F.; Livio F.; Michetti A.M.; Roberts G.; Vittori E.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 500
起始页码: 1
结束页码: 14
语种: 英语
英文关键词: earthquakes ; fault segmentation ; fluid diffusion ; InSAR ; seismic sequence
Scopus关键词: Diffusion in liquids ; Faulting ; Fault segmentation ; Fluid diffusion ; InSAR ; Modes of failure ; Seismic hazards ; Seismic sequence ; Spatiotemporal evolution ; Subsurface structures ; Earthquakes ; earthquake event ; earthquake rupture ; faulting ; interferometry ; seismic hazard ; spatiotemporal analysis ; synthetic aperture radar ; Italy
英文摘要: Large continental earthquakes necessarily involve failure of multiple faults or segments. But these same critically-stressed systems sometimes fail in drawn-out sequences of smaller earthquakes over days or years instead. These two modes of failure have vastly different implications for seismic hazard and it is not known why fault systems sometimes fail in one mode or the other, or what controls the termination and reinitiation of slip in protracted seismic sequences. A paucity of modern observations of seismic sequences has hampered our understanding to-date, but a series of three Mw>6 earthquakes from August to November 2016 in Central Italy represents a uniquely well-observed example. Here we exploit a wealth of geodetic, seismological and field data to understand the spatio-temporal evolution of the sequence. Our results suggest that intersections between major and subsidiary faults controlled the extent and termination of rupture in each event in the sequence, and that fluid diffusion, channelled along these same fault intersections, may have also determined the timing of rupture reinitiation. This dual control of subsurface structure on the stop-start rupture in seismic sequences may be common; future efforts should focus on investigating its prevalence. © 2018 The Author(s)
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109679
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: COMET, Department of Earth Sciences, Durham University, Durham, United Kingdom; COMET, School of Earth & Environment, University of Leeds, Leeds, United Kingdom; Department of Earth Sciences, Durham University, Durham, United Kingdom; Geospatial Research Ltd., Department of Earth Sciences, Durham University, Durham, United Kingdom; COMET, School of Engineering, Newcastle University, Newcastle, United Kingdom; Department of Earth and Planetary Sciences, Birkbeck, University of London, London, United Kingdom; Dipartimento di Scienza e Alta tecnologia, Università degli Studi dell'Insubria, Como, Italy; Servizio Geologico d'Italia, ISPRA, Rome, Italy; COMET, School of Earth Sciences, University of Bristol, Bristol, United Kingdom

Recommended Citation:
Walters R.J.,Gregory L.C.,Wedmore L.N.J.,et al. Dual control of fault intersections on stop-start rupture in the 2016 Central Italy seismic sequence[J]. Earth and Planetary Science Letters,2018-01-01,500
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