Historic earthquakes and empirical studies show that thrust fault ruptures produce stronger ground motion than normal or strike-slip events of the same size due to a combination of hanging wall effects, vertical asymmetry, and higher stress drop resulting from compression. There have been many studies on thrust faults, but most are empirical or lab simulated. Our 3D dynamic rupture modeling parameter study focuses on planar thrust faults of varying dip angles and burial depth, in order to establish a physics-based understanding of how these geometrical parameters affect surface displacement and ground motion. We vary dip angle and burial depth in order to show systematic changes that result from fault geometry—a major driving force in thrust fault ruptures. Our models can help fill gaps in observational studies for different thrust fault geometries, and provide a starting point for understanding hazard for generalized or specific thrust faults. Methods

中文翻译：

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来自具有可变倾角和埋深的逆冲断层的动态破裂模型的地表位移和地面运动

历史地震和经验研究表明，由于挂壁效应、垂直不对称和压缩导致的更高应力降的综合作用，逆冲断层破裂产生比相同大小的正常或走滑事件更强的地面运动。已经有许多关于推力断层的研究，但大多数是经验或实验室模拟。我们的 3D 动态破裂建模参数研究侧重于不同倾角和埋藏深度的平面逆冲断层，以便对这些几何参数如何影响地表位移和地面运动建立基于物理学的理解。我们改变倾角和埋藏深度，以显示断层几何结构导致的系统变化——这是逆冲断层破裂的主要驱动力。我们的模型可以帮助填补针对不同逆冲断层几何形状的观测研究中的空白，并为理解广义或特定逆冲断层的危害提供一个起点。方法