General

A PRELIMINARY REPORT ON THE 2023 GAZİANTEP (Mw=7.7) and ELBİSTAN (Mw=7.5) EARTHQUAKES IN SOUTHEAST TÜRKİYE

• 09.02.2023
• Author:admin
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Introduction
Two destructive earthquakes struck SE Türkiye on the February 6, 2023. (Figure 1) (AFAD 2023; KOERI 2023; USGS NEIC). The earthquakes occurred along the East Anatolian Fault Zone (EAFZ), within or in close vicinity of a prominent seismic gap known as the Maraş Seismic Gap (Figure 2) (Nalbant et al. 2002; Duman and Emre 2013; Aktuğ et al. 2016; Utkucu et al. 2023). The size of the first destructive shock was Mw=7.7 while the size of the other one was Mw=7.5 (Table 1). A large aftershock of Mw=6.7 also occurred between the destructive shocks. Numerous aftershocks, including several M>6.0 aftershocks, are still continuing to shake the earthquake struck area (Figure 3). The first reports from the earthquake struck area indicates heavy damage and casualties. The hypocentral and source parameters of the earthquakes obtained so far are given in Table 1.

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