On September 19, 1985, Radio Fórmula's headquarters in downtown Mexico City were destroyed by an 8.1 earthquake, which killed several hosts and employees and knocked the AM stations off the air for nearly a month (the FM stations' transmitters are based at the Torre Latinoamericana). The network later relocated to the Polanco neighborhood in the west part of the city. Journalist Pedro Ferriz de Con, who hosted a morning newscast on XEDF-AM, barely managed to survive and spent over a year hospitalized, whereas Sergio Rod and Gustavo Calderón, morning hosts of XEAI-AM, perished.