Epidemic type aftershock sequence (ETAS) model simulation code -- Fortran 95 -- used to generate the data for the ETAS model was written by Karen Felzer and Yu Gu, spring 2001, and modifie by A. Helmstetter 2002-2011 and further modified by Andres Zambrano 2015-2017. It can be obtained in the following website: www.corssa.org/software under the subsection "Seismicity modeling and forecasting:short-term".