论文标题
塑料事件中因果关系的直接观察验证了地震学的统计分析工具
Direct observations of causal links in plastic events validates statistical analysis tools for seismology
论文作者
论文摘要
地震是由滑动断层的踩踏运动驱动的复杂物理过程。主要地震后，通常会遵循一系列余震。这些被宽松地定义为遵循给定事件并发生在规定的时空窗口中的事件。但是，在地震学中，不可能建立因果关系，而流行的最近的邻居指标通常用于区分余震与独立事件。在这里，我们采用了地震动力学的模型，以前证明能够正确地重现地震现象学，以及一种使我们能够分离独立和触发事件的技术。我们表明，目录中的余震遵循了欧莫里定律，我们采用该模型表明，最近的邻里指标有效地将独立事件与余震分开。
Earthquakes are complex physical processes driven by the stick-slip motion of a sliding fault. After the main quake, a series of aftershocks typically follows. These are loosely defined as events that follow a given event and occur within prescribed space-time windows. In seismology, it is however impossible to establish a causal relation and the popular Nearest-Neighbor metric is commonly used to distinguish aftershocks from independent events. Here we employ a model for earthquake dynamics, previously shown to be able to correctly reproduce the phenomenology of earthquakes, and a technique that allows us to separate independent and triggered events. We show that aftershocks in our catalogue follow Omori's law and we employ the model to show that the Nearest-Neighbor metric is effective in separating independent events from aftershocks.
