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Ground-motion prediction equations for the intermediate depth Vrancea (Romania) earthquakes

机译:中深度Vrancea(罗马尼亚)地震的地震动预测方程

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摘要

We present the regional ground-motion prediction equations for peak ground acceleration (PGA), peak ground velocity (PGV), pseudo-spectral acceleration (PSA), and seismic intensity (MSK scale) for the Vrancea intermediate depth earthquakes (SE-Carpathians) and territory of Romania. The prediction equations were constructed using the stochastic technique on the basis of the regional Fourier amplitude spectrum (FAS) source scaling and attenuation models and the generalised site amplification functions. Values of considered ground motion parameters are given as the functions of earthquake magnitude, depth and epicentral distance. The developed ground-motion models were tested and calibrated using the available data from the large Vrancea earthquakes. We suggest to use the presented equations for the rapid estimation of seismic effect after strong earthquakes (Shakemap generation) and seismic hazard assessment, both deterministic and probabilistic approaches.
机译:我们提出了Vrancea中深度地震(SE-喀尔巴阡山脉)的地区地面运动预测方程,用于峰值地面加速度(PGA),峰值地面速度(PGV),拟谱加速度(PSA)和地震强度(MSK尺度)和罗马尼亚的领土。在区域傅里叶振幅谱(FAS)源缩放和衰减模型以及广义站点放大函数的基础上,使用随机技术构建了预测方程。所考虑的地震动参数的值作为地震震级,深度和震中距离的函数给出。使用来自大型Vrancea地震的可用数据对开发的地面运动模型进行了测试和校准。我们建议使用确定的方法和概率方法,使用给出的方程式快速估算强地震(Shakemap生成)后的地震效果和地震危害评估。

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