Akademik Veri Yönetim Sistemi
JOURNAL OF AFRICAN EARTH SCIENCES, cilt.239, 2026 (SCI-Expanded, Scopus)
The engineering geological model of the I(center dot)skenderun Plain was defined using geological and geophysical measurements obtained before the February 06, 2023 Mw: 7.8 Pazarc & imath;k earthquake, and the resilience of different geological units to seismic forcing was evaluated. The structural damages and soil failures from the dynamic forces of the earthquake in this plain were examined based on the engineering geological properties of the soils. In the evaluation of the soil behavior during the earthquake, data from 116 drillings, 40 ReMi, 20 microtremor, strong ground motion acceleration records measured at station 3115 in I(center dot)skenderun belonging to the main shock of the Pazarc & imath;k earthquake and the properties of the delta plain were used. Engineering geology and rock-soil transition boundary maps were prepared in the study area using core samples and rock lithologies taken from the drillings. Classified maps were generated accordingly. The dominant period, amplification and Vs30 velocity distribution maps drawn using microtremor and ReMi records, were compared. According to the engineering geological map classified in the study, the soils forming the coastal section of the Iskenderun Plain were determined as CL (low plasticity clay), GM (silty gravel), GP (poorly graded gravel), ML (low plasticity silt), and SM (silty sand). Microtremor and ReMi measurements, show that the soil amplification was 2 times or more in these areas and the dominant period of the soil was 0.6 s or greater. Finally, using SRTM-DEM 30 Arc-Sec satellite imagery, water flow direction and flow accumulation maps in flatter areas where the slope angle decreases were created and hydrogeological features were examined, especially in areas where the damage was concentrated. The analysis shows that the coastal damage, observed about 20 km from the surface rupture, resulted from soil amplification and was triggered by soil liquefaction, liquefaction-induced lateral spreading, and other soil-related failures.