Hergarten Stefan, Neugebauer Horst J
Geodynamics-Physics of the Lithosphere, University of Bonn, Germany.
Phys Rev Lett. 2002 Jun 10;88(23):238501. doi: 10.1103/PhysRevLett.88.238501. Epub 2002 May 24.
With the help of numerical simulations we show that the established Olami-Feder-Christensen earthquake model exhibits sequences of foreshocks and aftershocks; this behavior has not been recognized in previous studies. Our results are consistent with Omori's empirical law, but the exponents predicted by the model are lower than observed in nature. The occurrence of foreshocks and aftershocks can be attributed to the nonconservative character of the Olami-Feder-Christensen model.
通过数值模拟，我们表明已建立的奥拉米 - 费德 - 克里斯蒂安森地震模型呈现出前震和余震序列；这种行为在以往的研究中尚未被认识到。我们的结果与大森经验定律一致，但该模型预测的指数低于自然界中观察到的指数。前震和余震的发生可归因于奥拉米 - 费德 - 克里斯蒂安森模型的非保守特性。
