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Stress Shadows Determined from a Phase Dynamical Measure of Historic Seismicity

机译:根据历史地震的相动力学测度确定的应力阴影

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摘要

The Pattern Informatics (PI) technique (tiampo et al., 2002) is founded on the premise that changes in the seismicity rate are a proxy for changes in the underlying stress. These stress changes are correlated over large spatial regions, and can be quantified using a phase dynamical analysis of the changes in historic seismicity rates. This new approach to the study of seismicity quantifies its local and regional space-time patterns and identifies regions of local quiescence or activation. Here we study those local changes in an attempt to objectively quantify short-term stress shadow regions. We determine that, while persistent stress shadows are detectable with this method, they do not occur uniformly throughout the spatio-temporal region.
机译:模式信息学(PI)技术(tiampo等,2002)的前提是地震活动率的变化是潜在应力变化的代表。这些应力变化在较大的空间区域内相关,并且可以使用历史地震活动率变化的相动力学分析进行量化。这种研究地震活动性的新方法量化了其局部和区域时空模式,并确定了局部静止或激活的区域。在这里,我们研究那些局部变化,以客观地量化短期应力阴影区域。我们确定,尽管使用此方法可以检测到持久性应力阴影,但它们在整个时空区域中并不是均匀地出现的。

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