气候变化领域集成服务门户(CCPortal): Distribution of Interseismic Coupling Along the North and East Anatolian Faults Inferred From InSAR and GPS Data

CCPortal

DOI	10.1029/2020GL087775
	Distribution of Interseismic Coupling Along the North and East Anatolian Faults Inferred From InSAR and GPS Data
	Bletery Q.; Cavalié O.; Nocquet J.-M.; Ragon T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	The North Anatolian Fault (NAF) has produced numerous major earthquakes. After decades of quiescence, the Mw 6.8 Elazığ earthquake (24 January 2020) has recently reminded us that the East Anatolian Fault (EAF) is also capable of producing significant earthquakes. To better estimate the seismic hazard associated with these two faults, we jointly invert interferometric synthetic aperture radar (InSAR) and GPS data to image the spatial distribution of interseismic coupling along the eastern part of both the NAF and EAF. We perform the inversion in a Bayesian framework, enabling to estimate uncertainties on both long-term relative plate motion and coupling. We find that coupling is high and deep (0–20 km) on the NAF and heterogeneous and superficial (0–5 km) on the EAF. Our model predicts that the Elazığ earthquake released between 200 and 250 years of accumulated moment, suggesting a bicentennial recurrence time. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Faulting; Global positioning system; Synthetic aperture radar; Uncertainty analysis; Bayesian frameworks; GPS data; Interferometric synthetic aperture radars; North Anatolian Fault; Plate motions; Recurrence time; Seismic hazards; Earthquakes; Bayesian analysis; earthquake magnitude; estimation method; GPS; heterogeneity; North Anatolian Fault; plate motion; seismic hazard; seismic quiescence; synthetic aperture radar; uncertainty analysis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169929
作者单位	Université Côte d'Azur, IRD, CNRS, Observatoire de la Côte d'Azur, Géoazur, France; Institut de Physique du Globe de Paris, Université de Paris, CNRS, Paris, France; Seismological Laboratory, California Institute of Technology, Pasadena, CA, United States
推荐引用方式 GB/T 7714	Bletery Q.,Cavalié O.,Nocquet J.-M.,et al. Distribution of Interseismic Coupling Along the North and East Anatolian Faults Inferred From InSAR and GPS Data[J],2020,47(16).
APA	Bletery Q.,Cavalié O.,Nocquet J.-M.,&Ragon T..(2020).Distribution of Interseismic Coupling Along the North and East Anatolian Faults Inferred From InSAR and GPS Data.Geophysical Research Letters,47(16).
MLA	Bletery Q.,et al."Distribution of Interseismic Coupling Along the North and East Anatolian Faults Inferred From InSAR and GPS Data".Geophysical Research Letters 47.16(2020).