Rescue teams in Venezuela have pulled a 43-year-old security guard alive from the rubble of a collapsed building, eight days after twin earthquakes devastated parts of the country, killing nearly 2,300 people.

The survivor, Hernan Gil, was rescued on Thursday from the remains of a seven-storey building in Catia La Mar, one of the worst-hit coastal communities.

The operation was described by his family and rescuers as miraculous.

"This is truly a miracle," Gil's wife, Gusbimar Gonzalez, said as rescue workers worked to free him.

According to AFP, rescue teams from Venezuela, Chile, the United States, Portugal, Costa Rica, El Salvador and Mexico spent three days reaching Gil.

He was supplied with more than 10 litres of water through a hose and oxygen through a tube while digging through the debris.

"It wasn't easy to reach the exact spot where the victim was located," said Cristian Vera, leader of the Chilean rescue team.

The successful rescue came as hopes of finding more survivors continue to fade following the June 24 earthquakes, which measured 7.2 and 7.5 magnitudes.

Official figures released by Venezuela's National Assembly President, Jorge Rodriguez, show that the death toll has risen to 2,295, with more than 11,000 people injured and nearly 13,000 left homeless.

NASA estimates indicate that about 60,000 buildings were damaged or destroyed by the earthquakes.

Rescue efforts have now shifted largely to recovering bodies, with many collapsed buildings in the hardest-hit areas marked after searches found no signs of life.

"We break through slab by slab to retrieve the bodies... The families need the bodies to say their goodbyes," crane operator Manuel Alejos said.

Mexican firefighter and search-and-rescue dog handler Cesar Gonzalez said the chances of finding more survivors were now extremely slim.

"Just two days ago, there was much more hope. Now, it would take a miracle to find anyone alive," he said.

Meanwhile, humanitarian conditions continue to deteriorate, with thousands of displaced residents struggling to access food, clean water and shelter.

The World Food Programme (WFP) has appealed for $50 million to provide food assistance to about 500,000 people over the next three months, while security forces have intensified patrols to prevent looting.

Among those displaced is Maria Arteaga, a 33-year-old mother of four, who now lives in a makeshift shelter.

"We lost everything, except our lives. We're even barefoot," she said.