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Information Journal Paper

Title

Estimating surface displacement of the June 2020 earthquake in Northwestern Iran-Study area: Qotur City

Pages

  207-219

Abstract

 Introduction: Earthquake is a natural disaster which sometimes causes injury and loss of life to many people and generates tsunamis. As one of the most frequently occurring natural phenomena, it is considered by many as the most frightening and dangerous natural hazard. With recent developments of remote sensing, radar interferometry is accepted as an efficient and relatively accurate method of measuring ground surface displacement. The present study has investigated June 25, 2020 Earthquake in Qotur (the city of Khoy). Materials & Methods: The present study have utilized InSAR and PSI techniques to estimate the amount of displacement caused by the Earthquake. Remotely sensed images collected in the upstream passages were processed in Sarproz software. Radar interferometry and other advanced methods such as PSI have made detection of vertical surface displacements possible even in a few millimeter range. The present pairs of images have been selected with a good correlation from Sentinel-1 data. Results & Discussion: The present study seeks to estimate the extent of ground heave and subsidence caused by Earthquakes. Images selected from statistical periods before and after the Earthquake were processed, and outputs were presented as figures and diagrams. Graphs showed the accuracy of the work and annual cumulative displacement. Results indicated the presence of a surface displacement between-16 and +16. The most intense subsidence and ground heave have happened in the northeastern regions (Gogerd village) and the southern regions (Kotanabad, Mir Omar, Grenavik villages), respectively. Conclusion: Maximum displacements (heave and subsidence) and other data collected from the Earthquake show that the Bashkala left-Lateral Strike-Slip fault has caused this Earthquake.

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    APA: Copy

    Modirzadeh, Reyhaneh, Emami, Rashed, ASGHARI SARASKANROUD, SAYAD, & Rostami, Aref. (2022). Estimating surface displacement of the June 2020 earthquake in Northwestern Iran-Study area: Qotur City. GEOGRAPHICAL DATA, 31(122 ), 207-219. SID. https://sid.ir/paper/1050872/en

    Vancouver: Copy

    Modirzadeh Reyhaneh, Emami Rashed, ASGHARI SARASKANROUD SAYAD, Rostami Aref. Estimating surface displacement of the June 2020 earthquake in Northwestern Iran-Study area: Qotur City. GEOGRAPHICAL DATA[Internet]. 2022;31(122 ):207-219. Available from: https://sid.ir/paper/1050872/en

    IEEE: Copy

    Reyhaneh Modirzadeh, Rashed Emami, SAYAD ASGHARI SARASKANROUD, and Aref Rostami, “Estimating surface displacement of the June 2020 earthquake in Northwestern Iran-Study area: Qotur City,” GEOGRAPHICAL DATA, vol. 31, no. 122 , pp. 207–219, 2022, [Online]. Available: https://sid.ir/paper/1050872/en

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