Dynamics of earthquake nucleation process represented by the Burridge-Knopoff model Yushi Ueda, Shouji Morimoto, Shingo Kakui, Takumi Yamamoto and Hikaru Kawamura Eur. Phys. J. B, 88 9 (2015) 235 Published online: 21 September 2015 DOI: 10.1140/epjb/e2015-60499-0