Overview

• At noon on September 19, the Second Simulacro Nacional 2025 ran a magnitude 8.1 earthquake scenario centered near Lázaro Cárdenas, Michoacán, with participation across multiple states.
• For the first time, a nationwide cell-broadcast alert reached about 80 million devices without apps, data or registration, alongside activation of 14,491 public loudspeakers.
• Authorities documented cases where phones missed or received delayed alerts due to disabled emergency settings and noted isolated loudspeaker delays or failures.
• Localities executed complementary exercises including rescues, tsunami, hurricane and urban fire scenarios, prompting orderly evacuations in workplaces, schools and transport systems.
• President Claudia Sheinbaum led a half-mast ceremony for victims of 1985 and 2017, and Mexico City held a 2,500-person first-aid class as SGIRPC reported 175,000 people trained in 2025.