A vast iceberg with twice the volume of Lake Erie has broken off from a key ice shelf in Antarctica, scientists said Wednesday. The iceberg broke off from the Larsen C Ice Shelf, scientists at the University of Swansea in Britain said. The iceberg is described as weighing 1 trillion metric tons (1.1 trillion short tons). The 5,800-square-kilometer (2,240 square mile) section broke away, or calved, in the last few days.

“We have been anticipating this event for months and have been surprised how long it took for the rift to break through the final few kilometers of ice,” said Adrian Luckman of Swansea University. “We will continue to monitor both the impact of this calving event on the Larsen C Ice Shelf and the fate of this huge iceberg.” READ MORE