`Greater London-sized` 1,550 sq km iceberg breaks off of Antarctic ice shelf. Watch!

`Greater London-sized` 1,550 sq km iceberg breaks off of Antarctic ice shelf. Watch!

'Greater London-sized' 1,550 sq km iceberg breaks off of Antarctic ice shelf. Watch! Story highlights As per the British Antarctic Survey (BAS), the chunk measures 1,550 square kilometres or 598 square miles. It detached from the 150-metre-thick Brunt Ice Shelf around a decade after scientists first spotted the crack known as Chasm-1 As per the British Antarctic Survey (BAS), the chunk measures 1,550 square kilometres or 598 square miles. It detached from the 150-metre-thick Brunt Ice Shelf around a decade …