"We lost everything in one moment to nature".
Earthquakes with magnitudes over 7 are major earthquakes capable of widespread, heavy damage.
The area surrounding the Huatulco beach resort in the southern state of Oaxaca was hit by a 7.4 magnitude quake on Tuesday.
Rockfalls blocked the winding mountain roads between the state capital of Oaxaca City and the coast.
Houses were scarred by wide cracks across walls. A woman died near Crucecita, and five other people died in towns located within 150 kilometers of the epicenter, officials said.
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The goal, he said, is to keep "what is working well" and to adjust policies that are not producing the desired result. What I said the other night, there's never been anything where they have so many names.
State-owned oil company Petroleos Mexicanos shut production at its 330,000 barrels-per-day Salina Cruz refinery in Oaxaca after a fire. It said one worker was injured and the flames were quickly extinguished.
"There will be aftershocks", USGS seismologist Paul Earle told the Associated Press. Smaller waves were expected through Central America, Peru and Ecuador.
Following the natural disaster, officials issued a tsunami warning along Mexico's coast with the possibility of waves reaching three to nine feet in height.
Mexico City Mayor Claudia Sheinbaum said power was knocked out in some areas. In September 2017, an 8.1-magnitude quake struck off the southern coast of Mexico, killing at least 60 people. The U.S. Geological Survey (U.S.G.S.) estimated the magnitude at 7.4, but the agency notes that it is not unusual for measurements to vary.
Near the epicenter, Magdalena Castellanos Fermin was in the village of Santiago Astata when the quake struck, sending large rocks tumbling down from the hillside and alarming residents.
Readings vary, but Mexico's National Seismological Service reported it as a 7.1 magnitude natural disaster.