A 7.7-magnitude earthquake shook central Mexico on Monday after a drill was conducted to mark the two devastating tremors of 1985 and 2017.
The quake jolted Mexico at 13:05 local time, just about an hour after millions of Mexicans throughout the country participated in the National Drill 2022, an earthquake prevention exercise, which consisted of evacuating people from buildings in an orderly manner.
"At around 12:00 we started earthquake drill according to the plan of our company and the building's management department. All of us went outdoors under guidance. The drill ended at around 13:00 so we went back to office," said Fang Tong, a Chinese working in Mexico City.
"When I walked to lifts, I heard the alarm again and was surprised. I thought there was another drill. Then I saw people quite nervous and running out. When we ran out, we felt the strong shake and knew there was a real earthquake."
Mexicans in the states most affected went out into the streets, while in the capital Mexico City, where the tremor was strongly felt, the seismic alert was activated and thousands streamed into the main arteries of the city.
The earthquake killed one in Colima State, with no great economic losses, said the country's civil defense agency.
Mexico's National Seismological Service adjusted the magnitude from 7.4 to 7.7, after changing from 7.5 to 7.4 magnitude. The epicenter was 63 km south of Coalcoman in the state of Michoacan, with a depth of 15 km.
Four Mexican states- Colima, Michoacan, Jalisco and Guerrero, all along the Pacific coast- issued tsunami alerts after the earthquake.