Association of the Mw 7.5, second Southeastern Turkey earthquake with the ionosphere across the TEC cross section

Emre Eroglu () and Fuat Basciftci ()
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Emre Eroglu: Kirklareli University
Fuat Basciftci: Karamanoglu Mehmetbey University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2024, vol. 120, issue 6, No 38, 5895-5917

Abstract: Abstract Approximately 9 h after the first Kahramanmaras earthquake, which hit on the night connecting February 5–6, earthquake institutes report a second earthquake with almost the same destructiveness. The name of this devastating event that shocks the ground with the break in the Eastern Anatolian Fault Line is Turkey’s second Southeastern earthquake. Mw 7.5, Ekinözü, Kahramanmaras earthquake hits at 10:24 UT on February 6, 2023, from a depth of 7.4 km. The second southeastern earthquake centered in Ekinözü, which caused intense loss of life in 10 provinces in the southeast of the country, is also felt in Syria, Iraq, Egypt, Lebanon, and Cyprus bordering Turkey, just like the first one. This discussion is dedicated to the folks who have suffered unbearable trauma. The discussion tries to detect the precursors of the earthquake through ionospheric TEC anomaly. The bounds of the anomaly are specified using some statistical instruments. The Fourier transformation governs the spectral analysis of the time-domain TEC atlas. Anomaly reading with the aid of the TEC atlas is based on the earthquake, space weather conditions, solar activity, and geomagnetic storm (coincided with the same time period). As a result of the analysis, the TEC anomaly is detected in the ionosphere on February 2 and 3 before the earthquake and on February 11, 15, 16, and 21 after the earthquake. The study likely detects precursors three days before the Ekinözü earthquake.

Keywords: Total electron content (TEC); Solar activity (SA); Geomagnetic storm (GS); February 6; 2023; Second Southeastern Turkey earthquake (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11069-024-06455-x

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