Five days after powerful back-to-back quakes flattened entire neighborhoods of multi-story buildings in the coastal state of La Guaira, hopes of finding survivors are fading.At a makeshift morgue set up in a port warehouse in La Guaira, hundreds of bodies were stored in white and black body bags and coffins waiting to be identified, an AFP correspondent reported.Dozens of relatives waited outside for news of their families as forensic personnel in blue uniforms examined the corpses."There were 11 people in my household; only two of us survived because we were at work," Wilker Molalla told AFP."My family is there -- I'm told my sister and her children are there, as well as the children of my brother."US Marines were meanwhile working to repair the quake-hit port to allow delivery of supplies and equipment, a US administration official told journalists in Washington.American airmen were already helping to restore traffic at Simon Bolivar International Airport near Caracas, which was also damaged in one of the worst quake disasters in Latin American history.The airport has already partially reopened to cargo and aid flights.US helicopters have been ferrying in aid and US Marines have used a landing craft to deliver supplies from the USS Fort Lauderdale, an amphibious transport dock ship docked at La Guaira.The chances of finding anyone alive beneath meters deep of rubble have dwindled since the critical 72-hour window passed.