globalchange  > 气候变化与战略
DOI: 10.1007/s11069-020-04439-1
论文题名:
November 08, 2019 Turkmanchay earthquake (Mw: 5.9) in NW Iran: an assessment of the earthquake using DInSAR time-series and field evidence
作者: Isik V.; Saber R.; Caglayan A.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 105, 期:3
起始页码: 3013
结束页码: 3037
语种: 英语
中文关键词: Aftershocks ; Co-seismic deformation ; Earthquake ; InSAR ; Iran ; South Bozgush Fault Zone
英文关键词: coseismic process ; Coulomb criterion ; deformation ; displacement ; earthquake event ; fault zone ; geological mapping ; Sentinel ; synthetic aperture radar ; time series analysis ; trigger mechanism ; Iran
英文摘要: The arc-shaped Bozgush Mountains is a remarkable morphological feature bounded by active faults in northwest Iran. The southern and northern parts of the mountain belt are limited by the South and North Bozgush Fault Zones, which produced numerous destructive earthquakes in historical and instrumental periods. We employed the Sentinel-1A Differential Interferometric Synthetic Aperture Radar (DInSAR) method to map the deformation details of the November 08, 2019, Turkmanchay earthquake (Mw: 5.9) along the South Bozgush Fault Zone to understand the earthquake-triggered surface deformations and seismogenic faulting characteristics. The results of the DInSAR time-series analysis show that subsidence and uplift range from − 5 cm to + 6 cm, respectively. The total line of sight (LOS) displacement was approximately 11 cm. Interferogram fringes and deformation patterns indicate that the direction of the potential seismogenic fault is WNW-ESE. These patterns are consistent with the orientation of the South Bozgush Fault Zone, including primarily right-lateral strike-slip characteristics with reverse components. Continuous patterns of the obtained interferogram fringes indicate that surface rupture did not occur during the earthquake. Our Coulomb failure function results in preferred faults derived from geological structures, indicating that the stress rate was positive and high in several segments of the South and North Bozgush Faults, revealing that the main earthquake event might trigger those faults. The large aftershocks that occurred on the same faults supported our results, and the distribution of aftershocks in the Bozgush Mountains suggests that the WNW-ESE orientation is consistent with the orientation of segments constituting the South Bozgush Fault Zone. © 2021, Springer Nature B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169092
Appears in Collections:气候变化与战略

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作者单位: Department of Geological Engineering, Ankara University, Tectonics Research Group, Ankara, TR-06830, Turkey; Ministry of Environment and Urbanisation, General Directorate of Spatial Planning, Department of Geological Survey, Ankara, TR-06520, Turkey

Recommended Citation:
Isik V.,Saber R.,Caglayan A.. November 08, 2019 Turkmanchay earthquake (Mw: 5.9) in NW Iran: an assessment of the earthquake using DInSAR time-series and field evidence[J]. Natural Hazards,2021-01-01,105(3)
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