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A stochastic model for earthquake slip distribution of large events

机译:大事件地震滑动分布的随机模型

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This paper presents a stochastic model to simulate spatial distribution of slip on the rupture plane for large earthquakes ( M w >7). A total of 45 slip models coming from the past 33 large events are examined to develop the model. The model has been developed in two stages. In the first stage, effective rupture dimensions are derived from the data. Empirical relations to predict the rupture dimensions, mean and standard deviation of the slip, the size of asperities and their location from the hypocentre from the seismic moment are developed. In the second stage, the slip is modelled as a homogeneous random field. Important properties of the slip field such as correlation length have been estimated for the slip models. The developed model can be used to simulate ground motion for large events.
机译:本文提出了一个随机模型来模拟大地震(M w> 7)在破裂面上滑动的空间分布。对来自过去33个大型事件的总共45个滑动模型进行了检查,以开发模型。该模型已分两个阶段开发。在第一阶段,从数据得出有效的破裂尺寸。建立了经验关系来预测破裂尺寸,滑动的均值和标准偏差,凹凸的大小及其从震源到震源的位置。在第二阶段,将转差建模为齐次随机场。对于滑动模型,已经估计了滑动场的重要属性,例如相关长度。开发的模型可用于模拟大型事件的地面运动。

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