Huge iceberg size of Greater London, breaks off from Brunt Ice Shelf, location of BAS Halley Research Station

A huge iceberg, some 1550 km², almost the size of Greater London, has broken off the 150m thick Brunt Ice Shelf. It calved after cracks that have been developing naturally over the last few years extended across the entire ice shelf, causing the new iceberg to break free. This occurred on Sunday 22 January between 19.00 and 20.00 UTC during a spring tide.