Mapping the train model for earthquakes onto the stochastic sandpile model C. V. Chianca, J. S. Sá Martins and P. M.C. de Oliveira Eur. Phys. J. B, 68 4 (2009) 549-555 Published online: 04 April 2009 DOI: 10.1140/epjb/e2009-00122-7