Abstract
Abstract. In this study, the deformation of Ayvacik Canakkale earthquake and aftershocks of 5.3 (Mw), which were observed on 6 February 2017 in Gulpinar Ayvacik and felt from the surrounding cities, were analyzed by InSAR and strain reduction technique. The earthquake is occurred at the Biga peninsula which is located at the south segment of North Anatolian Fault zone. The first shock (Ml = 4.8) started on 14 January 2017 in the region, and after the second shock (Ml = 5.4) on February 6, 2017, seismic storm continued with the large and small earthquakes. It was seen that 31 of these earthquakes have a size of 4 and above and occurred on the Tuzla fault. Since classical geodetic methods are not performed regularly and frequently, and are spatially provide point-based displacements, they are often insufficient to monitor sudden earthquakes. For this purpose, the deformation values were obtained along the line of sight (LOS) direction of Synesthetic Aperture Radar (SAR) sensor using Differential Interferometric SAR (DInSAR) method. For the geophysical analysis coulomb technique was applied and the continuity of the changes in the sea is determined.
Highlights
The right lateral strike slip on the Anatolian plate North Anatolian Fault Zone (NAFZ) is one of the most active faults due to movements of Eurasia, Africa and Arabian plates
The earthquake occurred at the Biga peninsula which is located at the south segment of the North Anatolian Fault zone (Figure 1)
Even the results of InSAR analysis indicated that the displacement is mostly dominated at vertical direction, ascending and descending results are combined for a detailed analysis
Summary
The right lateral strike slip on the Anatolian plate North Anatolian Fault Zone (NAFZ) is one of the most active faults due to movements of Eurasia, Africa and Arabian plates This zone forms the northern border of the Anatolian block moving westward. Extraction of earthquake related surface deformation and monitoring its spatial extension is crucial for local authorities to manage damage assessment and risk analysis. In this context, space-borne satellite based Synthetic Aperture RADAR (SAR) data provides accurate movements of the surface from millimetres to centimetre level (Ding and Huang 2011). A small block movement is observed right along the fault
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