# Comparative Analysis of Target Displacements in RC Buildings for 2023 Turkiye Earthquakes
## 5 Results and Conclusions  
With today's technology, it does not seem feasible to predict the time, size, and location of earthquakes. Earthquake hazards for any region can be estimated using different methods, and with these estimates, seismic parameters can be obtained for any region or geographical location. In this study, the seismic parameters of eleven provinces affected by the 6 February 2023, Kahramanmaras earthquake, which caused great destruction in Turkive, were analyzed. When PGA values were compared in the provinces affected by the February 6 earthquake, two different situations were encountered. In provinces such as Diparbakir, Osmaniye, Kilis, Adana, and Elazig, which are further away from the earthquake center, the expected PGA values were met. However, PGA values were recorded much higher than expected in the provinces of focus, especially in Kahramanmaras, Adiyaman, and Hatay. As it is known, PGA values are a parameter that directly changes with ground conditions. It was studied with the assumption that the V\({}_{\text{s30}}\) values in the stations where the acceleration values measured while accelerating the earthquake hazard map of Turkive were above 760 m/s. However, it is also seen in the published information of the stations that many stations are not qualified during the location selection of the registration stations. In this case, it was observed that the expected PGA values at nearby stations were exceeded by the effect of ground magnifications. This situation can also be evaluated positively for subsequent studies and may reveal how important ground enlargements are in the design phase and should be taken into account first. Specifically, the PGA and S\({}_{\text{DS}}\) values for the geographical location were compared according to the last two earthquake hazard maps. It seems that PGA values measured during earthquakes exceed the values predicted in earthquake hazard maps in most provinces. Target displacements for a sample RC structure were obtained separately for each province, taking into account the largest PGA values predicted in the earthquake hazard maps and the values measured during earthquakes. It should be taken into consideration that damage scenarios and performance levels will not be very realistic in structures where the target displacement value is not met. In the provinces where the target displacement limit states for the standard design ground motion level are not met, new structural analyses were performed by considering the largest earthquake ground motion level. Despite this, there are still many provinces where target displacement limit values are not met. This reveals the necessity of conducting geographical location-specific seismic hazard analyses. Accurately representing the earthquake hazard ensures that the earthquake performance of buildings is more meaningful. Statistical studies are limited to the selection of sampling intervals. Earthquake hazard maps made at the macro level are naturally created with very wide sampling intervals. Although the previous hazard maps used in Turkive and the PGA values obtained from them are informative, they are not sufficient during the implementation phase. The reason for this is that the ground conditions are mostly based on assumptions. For this reason, soil classifications based on microzonation should be made first of all and the expected PGA value for each different soil environment should be defined separately. Otherwise, it will be inevitable that the expected PGA values will be exceeded. The current earthquake hazard map used in Turkive is obtained specifically for each geographical location. However, in the previous earthquake zone map, seismic hazard was assessed on a regional basis. It should be acknowledged that this is a significant achievement. Seismic parameters obtained specifically for each location have influenced the target displacements obtained.