The induced stress originated by caving mining activity in the Reservas Norte sector of El Teniente Mine has caused rock mass damages at the undercut level.This damage could hinder the undercutting process and could affect the normal operation of the mine.Therefore, being able to predict which undercutting sequences may cause damage and identify where the damage could be located may contribute in the decision making process when planning different mining sequences.The use of a three-dimensional elastic model is a powerful tool to identify these areas.For the Reservas Norte sector a three-dimensional elastic model was calibrated using the stress measurement and rock mass damage mapping at the undercut level for three different periods of time.This study shows how the model was calibrated and the criteria used to calibrate the model.El Teniente Mine is a Codelco Chile underground copper mine.It is located in the Andes range in the central zone of Chile, about 70 km SSE from the capital city, Santiago (Figure 1).El Teniente is the largest known copper-molybdenum deposit in the world.It is hosted in a copper porphyry system.The main rock types include andesite, diorite and hydrothermal breccias of the Miocene era.Since 1906, more than 1,100 million tons of ore have been mined.The mine is currently extracting around 140,000 tons/day using mechanised caving methods.Panel and post-undercut caving methods, variations of the standard block caving, were introduced in 1982 and 1994, respectively to exploit primary copper ore. Figure 1 Location of El Teniente Mine (Rojas et al., 2001) The use of a three-dimensional elastic model to identify rock mass damaged areas in the undercut level D.A. Cuello et al. at Reservas Norte sector 438 Deep Mining 2010, Santiago, Chile Reservas Norte sector overviewEl Teniente Mine includes different production sectors (Figure 2), all of them located around a chimney of sub-volcanic breccias with an inverted cone shape, known as 'Braden Pipe'.Reservas Norte -also called as Sub6 sector at the beginning -is located on the north-eastern side and started its exploitation in 1989 using a conventional panel caving.Several rockbursts occurred during the 1990s and different exploitation sequences were tested to ensure its continuity.Up to now, Reservas Norte is mined by advance panel caving, considering a production plan close to 30,000 tons/day.