This study presents seismic hazard and seismic microzonation maps for the Abbottabad basin and surroundings, which are used in assessment and seismic design of buildings and bridges and other infrastructures. This research work determines microzonation parameters (shear wave velocity, fundamental frequency, and acceleration on ground surface) using geotechnical and geophysical testing procedures. Standard penetration test (SPT) and H/V methods are used to characterize the soils by estimating shear wave velocity at different locations. Microzonation maps for Abbottabad are developed in terms of acceleration parameter for 10% and 2% probability of exceedances in 50 years return period. These maps have been obtained based on the mean of average spectral acceleration values between 0.10 and 1.00 s following the Borcherdt (1994) recommendations. Based on H/V data (using Tromino Engy Plus instrument), it has been observed that the study area has average fundamental frequency range from 1 to 5 Hz, which represents the deposition of alluvial sediments (i.e., stiff and dense soil). Site characterization based on shear wave velocity indicated that soil in the study area consists of categories C and D. For the return period (Tr) of 475 years, the surface acceleration values ranges from 0.623 to 0.673 g, and for Tr = 2475 years, the area ranges from 1.007 to 1.107 g. These results show that soils in the Abbottabad basin will amplify 0.540 and 0.548 time respectively for Tr = 475 and 2475 against bed rock ground motions. Microzonation maps for Abbottabad basin do not exist; the maps produced in this study will be the basic input for carrying out the earthquake resistant design of the structures in Abbottabad.

中文翻译：

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阿伯塔巴德盆地和附近环境的微区地图

本研究提供了阿伯塔巴德盆地和周围地区的地震危险性图和地震微区划图，这些图用于建筑物和桥梁及其他基础设施的评估和地震设计。这项研究工作使用岩土工程和地球物理测试程序确定微区带参数（剪切波速度，基频和地面加速度）。使用标准渗透试验（SPT）和H / V方法通过估计不同位置的剪切波速度来表征土壤。针对阿伯塔巴德（Abbottabad）的微区划图是根据加速参数绘制的，在50年的回报期内，有10％和2％的超出概率。这些图是根据Borcherdt（1994）建议在0.10到1.00 s之间的平均光谱加速度值的平均值获得的。根据H / V数据（使用Tromino Engy Plus仪器），已观察到研究区域的平均基本频率范围为1到5 Hz，代表了冲积沉积物（即硬而稠密的土壤）的沉积。基于剪切波速度的站点特征表明研究区域的土壤分为C和D类。对于475年的回归期（Tr），表面加速度值范围为0.623至0.673 g，对于Tr = 2475年，面积为1.007至1.107 g。这些结果表明，针对基岩地震动，Tr = 475和2475时，Abbottabad盆地的土壤将分别放大0.540和0.548时间。阿伯塔巴德盆地的微区地图不存在；