Calculation of the amplification factor of the earthquake with the magnitude M=7.8, M=7.6 that happened in the city of Kahramanmarash on february 6, 2023
2023
Sabina Kazimova | Gultakin Musayeva | Gulasar Asgarova
In the article, the earthquakes that occurred in the city of Kahramanmarash on the territory of Turkey on February 6, 2023, with a difference of 9 hours, were analyzed. Based on geological, tectonic, seismogological data, earthquakes in Turkey were analyzed based on the observation network consisting of 57 telemetric seismic stations. According to macroseismic data, earthquakes were felt in 10 regions of the country and in Israel, Iraq, Lebanon, Georgia, Azerbaijan and Armenia. Analysis of source distribution by depth indicated two source zones located between 3 and 30 km depth. The source of the earthquake that occurred on February 6, 2023 is related to the dynamics of the Eastern Anatolian fault, oriented in the northeast-southwest direction. One of Turkey's major tectonic structures, the Eastern Anatolian Fault begins with the Karliova Triple Junction in the north and joins the Dead Sea Fault in the south. As a result of the earthquakes, more than 50,000 people died, 548,777 were injured, and the number of destroyed buildings reached 198,000. In order to determine the strengthening factor of the area, the data of 55 stations were taken from the official website of disaster and emergency (AFAD) and processed with 3 channels using the DIMAS program. Nakamura's method was used. Amplification factor was calculated for that area. Maps were drawn with Arcgis10.6 and Surfer10 programs. It was determined that the amplification factor in the earthquake that occurred at 04:17:35 min 1.8-max 7.8; and in the earthquake that occurred at 13:29:49, the amplification factor was min 1.5-max 9.0.
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