Ironically, on the anniversary of the two devastating earthquakes of 1985 and 2017, a tremor with a magnitude of 7.4 shook western Mexico.
The center of the quake was 59 kilometers south of Coalcoman in the state of Michoacán on the Pacific coast, as the National Seismological Institute announced on Monday.
The tremors were also felt in the capital, Mexico City.
"We hope with all our hearts that nothing bad has happened," said President Andrés Manuel López Obrador on Twitter.
Mexico City Mayor Claudia Sheinbaum said no damage had been reported so far.
An earthquake drill had just ended in the Mexican capital half an hour before the earthquake.
The residents immediately left their homes.
High waves warning
"We thought that can't be true!
But.
It's impressive that the earth is shaking so hard again today," said 37-year-old Karina Suárez in the center of the capital.
On the anniversary of the two major earthquakes of September 19, 1985 and 2017, the Mexico City authorities regularly hold an earthquake drill.
On September 19, 1985, an 8.1 magnitude tremor in Mexico City killed more than 10,000 people and destroyed hundreds of buildings.
On September 19, 2017, a 7.1 magnitude earthquake killed around 370 people, most in the capital.
The tsunami warning agency predicted dangerous tsunami waves.
These could reach a height of one to three meters on some stretches of coast in Mexico.
Mexico borders the Atlantic and Pacific Oceans and is one of the most seismically active countries in the world.
The national territory extends over a total of five tectonic plates.