The powerful quake, centered near the Pacific coast in Oaxaca, was felt hundreds of miles away.
A strong earthquake shook southern Mexico on Tuesday, causing buildings in Mexico City — more than 300 miles to the northwest — to sway and prompting residents to flee homes and offices to seek safety on the streets under open sky.
The earthquake’s magnitude was 7.5, according to Mexico’s national seismological service, and it was centered in the Pacific Ocean, about 14 miles off the coast, south of Crucecita, a beach town in the southern state of Oaxaca that has been popular with tourists. It struck at 10:29 a.m. local time.
The U.S. Geological Survey estimated the magnitude at 7.4, and placed the epicenter about 12 miles inland; it is not unusual for preliminary measurements to vary. Another quake, estimated by the U.S.G.S. at 4.9 magnitude, struck the same region Monday night.
No serious damage or injuries have been reported.
There were no immediate reports of significant damage. The area closest to the epicenter is largely rural, and the nearest sizable city is Oaxaca, the state capital, is more than 90 miles away.
The state of Oaxaca has about 4 million residents in an area about the size of Indiana.
“So far we haven’t received reports of damage,” President Andrés Manuel López Obrador said in a video posted on his Twitter account. “We’ll be informing everyone and staying calm.”
In a later post, he relayed word from other officials that there were no reports of injuries.
The mayor of Mexico City, Claudia Sheinbaum, said neither the city’s security command center nor officials conducting overflights of the municipality had reported any “serious” impacts from the earthquake.
The quake poses a possible threat of a tsunami.
The U.S. National Oceanic and Atmospheric Administration said there was a “potential threat” of a tsunami along the coasts of Mexico, Guatemala, Honduras and El Salvador.
Powerful offshore earthquakes can trigger devastating tsunamis like the ones that hit Fukushima, Japan in 2011, and Aceh province in 2004, but it is difficult to predict which quakes will cause such destructive waves.
Elda Cantú contributed reporting from Mexico City.