Foreshocks and aftershocks in the Olami-Feder-Christensen model.
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.
Hergarten
Stefan
S
Geodynamics-Physics of the Lithosphere, University of Bonn, Germany. hergarten@geo.uni-bonn.de
Neugebauer
Horst J
HJ