MANTA, Ecuador, April 17 (Reuters) - The death toll from Ecuador's biggest earthquake in decades soared to at least 233 on Sunday as rescuers using tractors and bare hands hunted desperately for survivors in shattered coastal towns.
The 7.8 magnitude quake struck off the Pacific coast on Saturday and was felt around the Andean nation of 16 million people, causing panic as far away as the highland capital Quito and collapsing buildings and roads in a swathe of western towns.
President Rafael Correa, who was rushing home from a trip to Italy, said the confirmed number of fatalities rose on Sunday to 233. "The immediate priority is to rescue people in the rubble," he said via Tiwtter.
More than 1,500 people were injured, authorities said.
Coastal areas nearest the quake were worst affected, especially Pedernales, a rustic tourist spot with beaches and palm trees. Information was scant from there due to poor communications and transport chaos.
"There are people trapped in various places and we are starting rescue operations," Vice President Jorge Glas said on Sunday morning before boarding a plane to the area.
A state of emergency was declared in six provinces.
"There are villages totally devastated," Pedernales' mayor Gabriel Alcivar told local radio, adding that "dozens and dozens" had died in the rustic zone.
Rescue team members wait outside a clinic that was evacuated after tremors were felt resulting from an earthquake in Ecuador, in Cali, Colombia, April 16, 2016. REUTERS/Jaime Saldarriaga[/caption]
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Rescue team members and patients react outside a clinic that was evacuated after tremors were felt resulting from an earthquake in Ecuador, in Cali, Colombia, April 16, 2016. REUTERS/Jaime Saldarriaga[/caption]
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Patients wait outside a clinic that was evacuated after tremors were felt resulting from an earthquake in Ecuador, in Cali, Colombia, April 16, 2016. REUTERS/Jaime Saldarriaga[/caption]
Among international aid, Venezuela and Mexico were sending personnel and supplies, the Correa government said.
A tsunami warning was lifted on Saturday night but coastal residents were urged to seek higher ground in case tides rise.
"At first it was light, but it lasted a long time and got stronger," said Maria Jaramillo, 36, a resident of Guayaquil, describing windows breaking and pieces falling off roofs.
"I was on the seventh floor and the light went off in the whole sector, and we evacuated. People were very anxious in the street ... We left barefoot."
The OPEC member said oil production was not affected, but closed its main refinery of Esmeraldas, located near the epicenter, as a precautionary measure.
The Ecuadorean quake followed two large and deadly quakes that struck Japan since Thursday. Both countries are located on the seismically active "Ring of Fire" that circles the Pacific, but according to the U.S. Geological Survey large quakes separated by such long distances would probably not be related.
"Even the earth's rocky crust is not rigid enough to transfer stress efficiently over thousands of miles," it said on its web site. Quakes can cause other big quakes within a range of hundreds of miles, but can cause only small, brief quakes at a distance of thousands of miles, it said.