We investigate theoretically the effects of periodic-in-time modulations on the properties of earthquakes. To wit, we consider successively the one dimensional Burridge–Knopoff (BK) model and the two dimensional Olami–Feder–Christensen (OFC) model. Each model is modified to take into account either a modulation of normal stress or of shear stress acting on a fault. Despite the differences between the BK and the OFC model, several results are observed in both models. In particular, we observe that earthquake occurrences correlate with stress modulation. The correlation is strongly dependent on parameters such as the type of modulation, its frequency and amplitude, and in some cases on the magnitude of the considered earthquakes.

我们从理论上研究了周期性调制对地震特性的影响。综上所述，我们先后考虑一维Burridge-Knopoff（BK）模型和二维Olami-Fe​​der-Christensen（OFC）模型。修改每个模型以考虑作用在断层上的正应力或切应力的调制。尽管BK和OFC模型之间存在差异，但在两个模型中都观察到了一些结果。特别是，我们观察到地震的发生与应力调制有关。这种相关性在很大程度上取决于诸如调制类型，其频率和幅度的参数，在某些情况下还取决于所考虑的地震的幅度。