This paper proposes a model for describing resilience in emergency management of irregular events. The purpose of our model is to describe three parallel developments in an emergency response scenario. Namely, changes in the ongoing events processes, the actors' sensemaking and control functions, and the technologies used for sensemaking and control. Focusing on the three separate developments enables identifying resilience in the choice of control functions and technologies in response to foreseen and actual process changes, their consequences and new disturbances. Our model was created following an emergency exercise that proved to be difficult to analyse with respect to resilience using existing models. We use the exercise to illustrate and apply our model through a qualitative analysis.