Analyses of stochastic simulations methods for Vrancea (Romania) intermediate-depth earthquake recorded at seismic station INCERC Bucharest were made. The main research topic highlighted in this paper is the quest for the best model able to simulate the influence of the local site conditions considering to this aim different types of soil behavior. Two types of linear behavior and one type of nonlinear behavior of the soil layers were considered to investigate the site effects. Comparisons between the simulations and the recorded accelerograms and between the simulation methods were made in terms of amplitude parameters, frequency content, duration parameters, and energy release. A better approximation was found when the nonlinear behavior of the soil layers was employed.

中文翻译：

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Vrancea（罗马尼亚）中深度地震源随机模拟地面运动的局部条件模型

分析了在INCORC布加勒斯特地震台站记录的Vrancea（罗马尼亚）中深度地震的随机模拟方法。本文着重研究的主要课题是寻求能够模拟当地场地条件影响的最佳模型，并为此目的考虑不同类型的土壤行为。考虑土壤层的两种线性行为和一种非线性行为来研究场地效应。根据幅度参数，频率含量，持续时间参数和能量释放，对仿真和记录的加速度图之间以及仿真方法之间进行了比较。当采用土层的非线性行为时，发现了一个更好的近似值。