globalchange  > 科学计划与规划
DOI: 10.1002/2016GL071723
论文题名:
Ground deformation and source geometry of the 24 August 2016 Amatrice earthquake (Central Italy) investigated through analytical and numerical modeling of DInSAR measurements and structural-geological data
作者: Lavecchia G.; Castaldo R.; de Nardis R.; De Novellis V.; Ferrarini F.; Pepe S.; Brozzetti F.; Solaro G.; Cirillo D.; Bonano M.; Boncio P.; Casu F.; De Luca C.; Lanari R.; Manunta M.; Manzo M.; Pepe A.; Zinno I.; Tizzani P.
刊名: Geophysical Research Letters
ISSN: 0094-8305
EISSN: 1944-8036
出版年: 2016
卷: 43, 期:24
起始页码: 12389
结束页码: 12398
语种: 英语
英文关键词: 3-D source geometry ; active normal faults ; Amatrice 2016 earthquake ; analytical modeling ; DInSAR measurements ; finite element modeling
Scopus关键词: Analytical models ; Deformation ; Earthquakes ; Finite element method ; Geometry ; Geophysics ; Synthetic aperture radar ; 3-D finite elements ; Active normal faults ; Analytical and numerical models ; D-inSAR ; Differential interferometric synthetic aperture radars ; Maximum displacement ; Rupture propagation ; Source geometry ; Faulting
英文摘要: We investigate the ground deformation and source geometry of the 2016 Amatrice earthquake (Central Italy) by exploiting ALOS2 and Sentinel-1 coseismic differential interferometric synthetic aperture radar (DInSAR) measurements. They reveal two NNW-SSE striking surface deformation lobes, which could be the effect of two distinct faults or the rupture propagation of a single fault. We examine both cases through a single and a double dislocation planar source. Subsequently, we extend our analysis by applying a 3-D finite elements approach jointly exploiting DInSAR measurements and an independent, structurally constrained, 3-D fault model. This model is based on a double fault system including the two northern Gorzano and Redentore-Vettoretto faults (NGF and RVF) which merge into a single WSW dipping fault surface at the hypocentral depth (8 km). The retrieved best fit coseismic surface deformation pattern well supports the exploited structural model. The maximum displacements occur at 5–7 km depth, reaching 90 cm on the RVF footwall and 80 cm on the NGF hanging wall. The von Mises stress field confirms the retrieved seismogenic scenario. ©2016. The Authors.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007005478&doi=10.1002%2f2016GL071723&partnerID=40&md5=912c03c33eca409520f1448b1c4cfa15
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9268
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: CRUST-DiSPUTer-Università di Chieti-Pescara “G. d'Annunzio”, Chieti Scalo, Italy

Recommended Citation:
Lavecchia G.,Castaldo R.,de Nardis R.,et al. Ground deformation and source geometry of the 24 August 2016 Amatrice earthquake (Central Italy) investigated through analytical and numerical modeling of DInSAR measurements and structural-geological data[J]. Geophysical Research Letters,2016-01-01,43(24).
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