Several theories postulate that epistemic emotions, such as curiosity and surprise, motivate information-seeking. In these theories, information-seeking is treated as a unitary, singular construct, with the motivation assumed to be consistent across the various forms of exploration. However, there have been few empirical studies which actually test the emotion-exploration link, and the question of whether epistemic emotions affect the number of sources individuals explore (i.e., the breadth of search) has not been examined. The goal of the present study was thus to investigate the emotion-exploration link in the context of the breadth of exploration. To examine this question, university students were presented with trivia questions and asked to answer them. Participants were then shown an answer submitted by another participant, asked to rate how surprised and curious they felt in response, and then given the option of exploring up to three more responses submitted by different participants. In line with previous work, we found that the model with best fit to the data consisted of a serial mediation, with certainty predicting surprise, surprise predicting curiosity, and curiosity predicting the number of sources explored. However, in contrast to previous work, we did not consistently find that high-certainty errors resulted in greater epistemic emotions or exploration than low-certainty errors. The current findings support the many theories that argue for a role of emotions in motivating information-seeking behaviours, and demonstrated that this emotion-exploration link extends to the breadth of search as well.