At least seven people died and two dozen were injured in the magnitude-7.4 quake that shook Mexico on Tuesday, officials said.
Photo taken on June 23, 2020 shows debris on a street after an quake in Oaxaca, Mexico.
The state oil company, Petróleos Mexicanos, was forced to briefly shut down its refinery.
Civil protection coordinator David Leon said that more than 20 hospitals were damaged in the country, Deutsche Presse reported.
An initial tsunami warning was later reversed.
Rescuers were battling to reach a remote area of the rugged state amid reports that 15 workers had become trapped while constructing a highway. Another 11 people were injured. Though no significant damage has been reported by growers, we are keeping a close eye on the aftermath of these events.
The fatalities were near the quake's epicentre in the mountainous state, Oaxaca - known for its coffee, mescal and Spanish colonial architecture.
On Tuesday, the Secretariat of the Navy issued three bulletins on anomalous variations in sea level of up to 113 centimeters above tide level in the region where the natural disaster was generated. In the past 35 a long time there were being quite a few powerful quakes in the southern and central components of the state, which prompted extensive-scale destruction and large casualties.
It has suffered more than 23,000 COVID-19 deaths - the second most in Latin America - and 191,410 cases.
Medical staff were evacuated from some hospitals in the capital alongside patients, although those suffering from the coronavirus remained isolated inside the buildings, alongside their caretakers.
At least fifteen people are trapped in a collapsed building near the epicenter, Oaxaca Governor Alejandro Murat said in a radio interview.