in briefVenezuelans are furious about a slow government response to the two earthquakes that struck on Thursday.The United Nations has estimated that close to 7 million people may have been impacted.Close to seven million people may have been impacted by the twin earthquakes that struck Venezuela on Thursday, which have left nearly 1,500 dead. The United Nations migration agency estimated on Sunday that "up to 6.76 million people could be affected by the devastating earthquakes".The International Organization for Migration (IOM) projection highlights the "potentially vast humanitarian impact" of the disaster as locals on the ground claim the government is not responding quickly enough. Venezuela's interim leader Delcy Rodriguez was booed during a visit to a neighbourhood in the capital Caracas that had been badly struck by the natural disaster. "The government isn't doing anything for the people," residents yelled on Saturday, many of whom had loved ones trapped under the debris.News that makes senseYour trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox."Get out! Get out!" they shouted at Rodriguez.Three days after two powerful tremors of magnitude 7.2 and 7.5 hit, 50,000 people are still missing. The death toll has risen to 1,430 people — according to National Assembly president Jorge Rodriguez — and fury with perceived governmental inaction is mounting.As the first US aid flight landed in Caracas, millions of Venezuelans are feared to lack sanitation and other basic needs.Rodriguez has thanked the international community for the significant outpouring of aid.However, local residents are being forced to desperately claw away rubble from collapsed apartment buildings.Experts say the first 72 hours after natural disasters are the key, narrow window for finding the living."It's just very chaotic, hot and unorganised," Australian firefighter Craig De Meillon, 43, told the Agence France-Presse (AFP) news agency. He travelled alone to La Guaira from Miami to help. "Hopefully there's more people to find."UN aid chief Tom Fletcher on Friday told AFP the death toll could continue to soar.One runway at Simon Bolivar International Airport is partially functioning for aid landings. A US naval ship has also arrived off the coast.Glimmers of hope, but Venezuelans outragedThere was joy in the hardest-hit coastal area of La Guaira, north of Caracas, when locals pulled an infant alive out of the wreckage on Saturday, 32 hours after the initial shocks.In one social media video, a man welled up in tears as he held the baby in his arms.Already battered by years of a failing economy and the turbulence of the US intervention to abduct leader Nicolas Maduro in January, Venezuelans are increasingly expressing their anger with the government.Yessica Mendoza was forced to transport her own daughter to a morgue in Caracas after 25-year-old Yesimar Rodriguez and her husband Jhomel Anaya, 26, did not survive the tumbling debris of their home in La Guaira on Wednesday."We were the ones who pulled them out ourselves. No help ever came," the bereaved mother, 43, told AFP, adding the couple would be cremated without a wake due to their rapidly advancing decomposition.Offers of rescue support, aid, and condolences have poured into Venezuela following the two major earthquakes. Source: Getty / Edilzon GamezThe government has restricted access to La Guaira state, deployed the military to the area, and made it obligatory for volunteers to obtain a safe-entry pass.Anger among those impatiently waiting to volunteer surged as they waited for passes outside a concert hall in the capital."You need a permit to save lives — just imagine," complained Carlos Itriago, 27."I've been here since dawn standing in line so I can go rescue people," said Ezequiel Rivero, 53."Look at what time it is... how many lives have we already lost by now?"Venezuela already in troubleRodriguez said she had spoken with US President Donald Trump and Secretary of State Marco Rubio, who "reaffirmed their commitment to supporting the response efforts".The US said earlier it was sending a disaster response team of more than 250 personnel, including three special search-and-rescue units with dogs trained to locate people trapped beneath the rubble.Twenty-one countries were sending search-and-rescue teams, parliament chief Rodriguez said.Venezuela's worst earthquake in more than a century has come after the oil-rich country endured more than a decade of economic collapse.The crisis has hollowed out hospitals and public services, driving millions to leave the country.And the country remains in a fragile political transition six months after the US ousting of Maduro.Earthquakes of similar magnitude claimed more than 200,000 lives in Haiti in January 2010 and 73,000 lives in Kashmir in October 2005.Those killed in Venezuela included 28 Portuguese nationals, five Spaniards, two Brazilians, seven Chinese nationals, one Chilean, one Italian-Venezuelan, and one Uruguayan.The IOM said the 6.76 million people potentially impacted by the disaster will need"emergency shelter, safe water, sanitation and hygiene services, healthcare, protection support and essential relief items."The violent tremors are thought to have done some $6.7 billion in physical damage, the UN said, equivalent to six per cent of Venezuela's GDP.— With reporting by Agence France-Presse news agency.For the latest from SBS News, download our app and subscribe to our newsletter.