Analysis of ionospheric disturbance prior to the 20 July 2017 Mw 6.6 Bodrum, Turkey Earthquake

ABSTRACT

On July 20, 2017, a large Mw 6.6 earthquake occurred as the result of normal faulting at a shallow depth in southeast of Bodrum, Turkey. In this study, the pre-earthquake ionospheric anomalies were investigated by CODE-GIM data. The TEC values of the epicenter were obtained from IONEX files using a simple 4-point bivariate interpolation. The ionospheric anomalies were detected by using a quartile-based process during 15 days before the earthquake. Kp, Dst magnetic storm indices and F10.7 solar index were utilized to cross-check TEC anomalies. The results show that the extreme positive anomalies were detected on 9, 16 July and the negative anomalies were detected 12, 17, 18 and 19 July. According to space-weather condition, it is thought that the detected anomalies were caused by the magnetic storms occurring in related dates.

Authors: Erman Şentürk, M. Selim Çepni, Evrim Yavuz

Conference: 9th Congress of the Balkan Geophysical Society

Date / Location: 5-9 November 2017 / Antalya-Turkey

Cite this paper: Şentürk, E., Çepni, M. S., Yavuz, E. (2017). Analysis of ionospheric disturbance prior to the 20 July 2017 Mw 6.6 Bodrum, Turkey Earthquake, 9th Congress of the Balkan Geophysical Society, Antalya, Türkiye, 5-9 Kasım 2017.

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