Evacuations in Chile and Argentina after tsunami warningPeople had evacuated to higher ground in Punta Arenas, Chile, earlier on FridayThe tsunami warning was issued for Chile's remote Magallanes region and the Chilean Antarctic Territory, with precautionary measures also taken in Argentina's Tierra del Fuego region. The US Geological Survey said its epicentre was 219km (136 miles) from Ushuaia, Argentina - the world's most southerly city. Coastal areas of Chile and Argentina were evacuated after Chilean authorities issued a tsunami warning following a 7.4 magnitude earthquake off the country's southern coast. Footage posted on social media showed people calmly heading for higher ground in the remote town of Puerto Williams, with sirens blaring in the background. In Argentina, the earthquake was felt primarily in Ushuaia, with other towns affected "to a lesser extent", the office for the governor of the region said.