19 September is designated as a day of remembrance for the 1985 Mexico City earthquake , which killed approximately 10,000 civilians . Every year at 11 a.m. , a national earthquake drill is conducted by the government through the use of public loudspeakers located throughout Mexico City . The 2017 drill took place as scheduled , at 11 a.m. , around two hours before the central Mexico earthquake
1985 Mexico City earthquake
1985 Mexico City earthquake
2017 Puebla earthquake