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DOI	10.1016/j.epsl.2020.116443
	Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami
	Steffen R.; Steffen H.; Weiss R.; Lecavalier B.S.; Milne G.A.; Woodroffe S.A.; Bennike O.
发表日期	2020
ISSN	0012821X
卷号	546
英文摘要	Due to their large mass, ice sheets induce significant stresses in the Earth's crust. Stress release during deglaciation can trigger large-magnitude earthquakes, as indicated by surface faults in northern Europe. Although glacially-induced stresses have been analyzed in northern Europe, they have not yet been analyzed for Greenland. We know that the Greenland Ice Sheet experienced a large melting period in the early Holocene, and so here, we analyze glacially-induced stresses during deglaciation for Greenland for the first time. Instability occurs in southern Greenland, where we use a combined analysis of past sea level indicators and a model of glacially-induced fault reactivation to show that deglaciation of the Greenland Ice Sheet may have caused a large magnitude earthquake or a series of smaller magnitude earthquakes around 10,600 years ago offshore south-western Greenland. The earthquake(s) may have shifted relative sea level observations by several meters. If the earthquake-induced stress release was created during a single event, it could have produced a tsunami in the North Atlantic Ocean with runup heights of up to 7.2 m in the British Isles and up to 7.8 m along Canadian coasts. © 2020 The Authors
关键词	glacial isostatic adjustment glacially-triggered faulting Greenland relative sea-level data tsunami
英文关键词	Faulting; Glacial geology; Glaciers; Ice; Offshore oil well production; Sea level; Structural geology; Tsunamis; Combined analysis; Fault reactivation; Greenland Ice Sheet; North Atlantic Ocean; Relative sea level; Sea level indicators; Stress release; Triggered Earthquakes; Earthquakes; earthquake magnitude; Holocene; ice sheet; sea level; tsunami; wave runup; Arctic; Atlantic Ocean; Atlantic Ocean (North); Canada; Greenland; Greenland Ice Sheet; United Kingdom
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202906
作者单位	Lantmäteriet, Lantmäterigatan 2, Gävle, 80182, Sweden; Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, United States; Center for Coastal Studies, Virginia Tech, 926 West Campus Drive, Blacksburg, VA 24061, United States; Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, NF A1B 3X7, Canada; Department of Earth and Environmental Sciences, University of Ottawa, STEM Complex, 150 Louis Pasteur Private, Ottawa, ON K1N 6N5, Canada; Department of Geography, Durham University, Lower Mountjoy, South Road, Durham, DH1 3LE, United Kingdom; Geological Survey of Denmark and Greenland, Øster Voldgade 10, Copenhagen K, 1350, Denmark
推荐引用方式 GB/T 7714	Steffen R.,Steffen H.,Weiss R.,et al. Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami[J],2020,546.
APA	Steffen R..,Steffen H..,Weiss R..,Lecavalier B.S..,Milne G.A..,...&Bennike O..(2020).Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami.Earth and Planetary Science Letters,546.
MLA	Steffen R.,et al."Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami".Earth and Planetary Science Letters 546(2020).