A giant iceberg covering an area larger than Los Angeles has broken away from a floating ice shelf in Antarctica. - NBCNewsMACH
Fricker mapped growing rifts in the Amery shelf almost 20 years ago, and predicted that a chunk of ice known as the “loose tooth” would be next to break off. Instead, an even larger area just to the west of the “tooth” is the one that just calved.
“A rift on the other side took off and the iceberg broke away to the west of where we originally thought,” she said. “But it looks like that piece might come off as well. … It is not hanging on by much.” Once that occurs, she added, the entire front of the ice shelf will break off. “Probably in another 10 years or so there will be another big calving event from that ice shelf,” she said.
For now, the new iceberg is drifting in the waves just a few miles in front of the ice shelf it broke away from. But it could present a navigation hazard for ships as it drifts with the ocean currents and winds. It’s expected to drift past one of two Australian Antarctic research bases, one on each side of the Amery Ice Shelf: Mawson Station to the west and Davis Station to the east. “Either way it is going to cause trouble,” Fricker said.
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