According to the US Geological Survey , early on September 23 , 2017 , a magnitude 6.1 earthquake struck 12 miles southeast of Matías Romero . The epicenter was approximately between the centers of the two more violent earthquakes seen earlier in the month . On September 8 , an 8.1 magnitude quake had struck off of the southern Pacific coast , near Chiapas state . Mexico City , on September 19 , then endured a 7.1 magnitude quake , which also marked the 32nd anniversary of the devastating 1985 earthquake , in which more than 10,000 people had been killed
1985 earthquake
1985 Mexico City earthquake
Matías Romero, Oaxaca