DOI: 10.1002/grl.50290
论文题名: New insights into the 2012 Emilia (Italy) seismic sequence through advanced numerical modeling of ground deformation InSAR measurements
作者: Tizzani P. ; Castaldo R. ; Solaro G. ; Pepe S. ; Bonano M. ; Casu F. ; Manunta M. ; Manzo M. ; Pepe A. ; Samsonov S. ; Lanari R. ; Sansosti E.
刊名: Geophysical Research Letters
ISSN: 0094-9032
EISSN: 1944-8763
出版年: 2013
卷: 40, 期: 10 起始页码: 1971
结束页码: 1977
语种: 英语
英文关键词: earthquakes
; FEM
; InSAR
; modeling
Scopus关键词: Buried structure
; Displacement patterns
; Finite-element method modeling
; Geophysical information
; Ground deformations
; InSAR
; Seismic sequence
; Surface deformation
; Earthquakes
; Finite element method
; Geodetic satellites
; Models
; Modulation
; Seismology
; Deformation
; deformation mechanism
; earthquake event
; fault
; finite element method
; geophysical method
; measurement method
; numerical model
; RADARSAT
; satellite data
; seismic method
; Emilia-Romagna
; Italy
; Emilia
英文摘要: We provide new insights into the two main seismic events that occurred in 2012 in the Emilia region, Italy. We extend the results from previous studies based on analytical inversion modeling of GPS and RADARSAT-1 InSAR measurements by exploiting RADARSAT-2 data. Moreover, we benefit from the available large amount of geological and geophysical information through finite element method (FEM) modeling implemented in a structural-mechanical context to investigate the impact of known buried structures on the modulation of the ground deformation field. We find that the displacement pattern associated with the 20 May event is consistent with the activation of a single fault segment of the inner Ferrara thrust, in good agreement with the analytical solution. In contrast, the interpretation of the 29 May episode requires the activation of three different fault segments and a block roto-translation of the Mirandola anticline. The proposed FEM-based methodology is applicable to other seismic areas where the complexity of buried structures is known and plays a fundamental role in the modulation of the associated surface deformation pattern. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879940542&doi=10.1002%2fgrl.50290&partnerID=40&md5=057837c60d69852c9e8e56dcf85ff33b
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6296
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: National Research Council (CNR), Istituto per Il Rilevamento Elettromagnetico dell'Ambiente (IREA), via Diocleziano 328, IT-80124 Napoli, Italy
Recommended Citation:
Tizzani P.,Castaldo R.,Solaro G.,et al. New insights into the 2012 Emilia (Italy) seismic sequence through advanced numerical modeling of ground deformation InSAR measurements[J]. Geophysical Research Letters,2013-01-01,40(10).