8 September 2017 11:21 am
The aftershock was felt as far away as Mexico City.
People said the shock lasted as long as 90 seconds and caused office workers to flee their buildings.
The quake hit around 70 miles from the west coast of Mexico, near Tres Picos in the state of Chiapas.
Widespread, hazardous tsunami waves are possible within the next three hours, the Pacific Tsunami Warning Centre said.
Countries at risk include Mexico, Guatemala, El Salvador, Costa Rica, Nicaragua, Panama, Honduras and Ecuador.
The Warning Center later said the tsunami waves are expected to be between 1 and 3 metres high.
We'll be bringing you the very latest updates, pictures and video on this breaking news story. (mirror.co.uk)