New Rift on Greenland's Petermann Glacier

A new rift has been forming on Petermann Glacier, Greenland, throughout 2017. An older crack to the right of the new rift also seems to be extending toward the glacier's center. If this new rift meets up with the older crack, and an iceberg breaks off, it would be Petermann's third massive iceberg calving since 2010. It also would place the new calving face much farther upstream than the 2010 break.