Scaling features for the stress fluctuations in the OFC model (opens in new tab)

We consider the Olami-Feder-Christensen (OFC) model on a square two-dimensional lattice with open boundary conditions. The model exhibits self-organized criticality and explains the Gutenberg-Richter law observed for earthquakes. A parameter $\alpha$ controls the level of local dissipation: $\alpha < 0.25$ corresponds to locally dissipative and $\alpha = 0.25$ marks locally conservative dynamics. The avalanche size distribution follows a decayin...