Glacier Ice Bridge Breaks Off in Argentina's Los Glaciares National Park

An ice bridge broke off from the Perito Moreno glacier in Argentina's Patagonia region in a cyclical phenomenon that attracts thousands of tourists. Videos shared by the National Parks Administration in Argentina showed the moment the glacier ruptured at Los Glaciares National Park. The glacier, a massive tongue of ice in the Santa Cruz province that covers 250 square kilometers (97 square miles), advances yearly into a lake, known as Lago Argentino. As Perito Moreno moves forward, it cuts off a river feeding the lake. Water builds up pressure and slowly undermines the ice, forming a tunnel until the ice comes tumbling down. The ice bridge broke off late Sunday, March 11, and chunks of ice are expected to fall within the next few days. The last rupture was in 2016. Reuters contributed to this report.