This study aimed to reveal the soil properties in the research area by using various geophysical methods. Physical parameters determining soil characteristics give us a chance to approach how the soil behaves during an earthquake. Thus, precautions can be taken to minimize earthquake damage. Also, safe construction against earthquake effects is important. The studied area is a tectonically and geothermally active area. İzmir Fault zone is passing through the investigation area and trending E–W direction. To investigate soil parameters at this active tectonic region, microtremor method data were recorded and the multichannel analysis of surface waves (MASW) method at 27 profiles was implemented in the study area. Additionally, these methods were supported by the spatial auto correlation (SPAC) method in center spot. Shear wave velocities up to 30 m, soil classification according to the National Earthquake Hazards Reduction Program (NEHRP), site amplification, predominant site period, amplification factor, ground vulnerability index, and shear wave velocity changes up to 300 m were obtained by evaluating the data collected from the applied geophysical methods. V_S30 values varied between 700 and 1100 m/s in the southernmost part of the study area, corresponding to a C and B type as soil classification. While the predominant period values were taken as the lowest value of 0.2 s, it was observed to increase up to 5.5 s on the alluvial unit in the northern parts of the study area. The ground vulnerability index, which is directly related to the probability of earthquake damage, was found to be quite high in some parts of the study area. In this paper, we propose microzonation maps for the Balçova district, based on the variation of the soil dynamic parameters.

本研究旨在通过多种地球物理方法揭示研究区的土壤特性。决定土壤特性的物理参数使我们有机会了解地震过程中土壤的行为。因此，可以采取预防措施以最小化地震破坏。同样，安全施工以防地震影响也很重要。研究区域是构造和地热活动区域。伊兹密尔断层带正在穿过调查区域并向着E-W方向发展。为了研究该活动构造区域的土壤参数，记录了微震方法数据，并在研究区域实施了27个剖面的表面波多通道分析（MASW）方法。此外，中心点的空间自动相关（SPAC）方法支持这些方法。剪切波速度高达30 m，在研究区域的最南端，V _S30值在700至1100 m / s之间变化，对应于土壤类型为C和B类型。虽然将主要周期值设为0.2 s的最低值，但在研究区域北部的冲积单元上观测到的最大值增加到5.5 s。在研究区域的某些区域发现与地震破坏的可能性直接相关的地面脆弱性指数很高。在本文中，我们根据土壤动力学参数的变化提出了B​​alçova地区的微区划图。