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A23a is a large tabular iceberg which calved from the Filchner–Ronne Ice Shelf in 1986. It was stuck on the sea bed for many years but then started moving in 2020. As of January 2025, its area is about 3,500 square kilometres (1,400 sq mi), which makes it the current largest iceberg in the world.
This is a list of icebergs by total area. In 1956, an iceberg in the Antarctic was reported to be an estimated 333 kilometres (207 mi) long and 100 kilometres (62 mi) wide. Recorded before the era of satellite photography, the 1956 iceberg's estimated dimensions are less reliable.
The world’s largest iceberg is on the move again, drifting through the Southern Ocean after months stuck spinning on the same spot, scientists from the British Antarctic Survey (BAS) have said.
The world's largest iceberg is on the move in the Southern Ocean after spinning for months. Iceberg A23a weighs nearly 1 trillion tons and is twice the size of Greater London, according to the ...
The iceberg remains the largest in the world, according to measurements updated by the US National Ice Center earlier this month.. Spanning an area of 3,672 square kilometers (1,418-square-miles ...
The world's biggest iceberg is on the move again after being trapped in a vortex for most of the year. A23a is 3,800 sq km (1,500 sq miles), which is more than twice the size of Greater London ...
The iceberg is about 170 km (110 mi) long and 25 km (16 mi) wide, and is described as being shaped like a "giant ironing board", and roughly the size of Cornwall. [5] The size at calving was an estimated 4,320 km 2 (1,670 sq mi). Iceberg A-76a in March 2023
The largest icebergs in the world are formed this way. Non-tabular icebergs have different shapes and include: [26] Dome: An iceberg with a rounded top. Pinnacle: An iceberg with one or more spires. Wedge: An iceberg with a steep edge on one side and a slope on the opposite side. Dry-dock: An iceberg that has eroded to form a slot or channel.