Chasm-1 - the crack in the Brunt ice sheet - remained dormant for many years but has now created a new iceberg.

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Updated: 25/01/2023 - 10:43

Video. London-sized iceberg breaks off Antarctica - but scientists aren’t worried

A huge iceberg measuring more than 1,550 square kilometres broke away from the 150 metre thick Brunt Ice Shelf on Sunday.

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