The world's biggest iceberg A23a is on the move after 30 years

The world’s biggest iceberg named A23a is on the move after more than 30 years after being fixed to the ocean floor. The iceberg A23a broke away from the Antarctica coastline in 1986.

But it quickly became stuck in the Weddell Sea where it basically became an ice island. The iceberg has been moving at high speeds for the past year, and it is now about to spill over Antarctic waters.

World's biggest iceberg on the move after 30 years https://t.co/Yn1zJsjQFu
— BBC News (World) (@BBCWorld) November 24, 2023

The world’s biggest iceberg A23a is on the move after 30 years

A23a has an area of about 4,000 square kilometers which is approximately 1,500 square miles. It is more than twice the size of Greater London.

The world's biggest iceberg (A23a) is on the move!

At nearly 4,000 sq km (1,500 sq miles) it's over twice the size of Greater London.

A23a is about to spill beyond Antarctic waters having been grounded in the Weddell Sea since it broke off in 1986.https://t.co/phUlONGZXY
— Blue Planet Society (@Seasaver) November 24, 2023

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A23a iceberg is a truly gigantic one and not simply in terms of width. This ice slab has a thickness of 400 meters which is approximately 1,312 feet thick. In comparison, Europe’s tallest building, the London Shard stands only at 310 meters.

This giant iceberg was part of a large berg outburst from the White Continent’s Filchner Ice Shelf. At the time, it was hosting a Soviet Research Station which just shows how long ago its calving occurred.

Moscow launched a mission to remove equipment from Druzhnaya Base 1 fearing that the equipment might be lost. But the tabular iceberg didn’t get far from the coastline before its deep keel fixed it to the bottom mud of the Weddell Sea.