What Happened To The Iceberg That Broke Off Antarctica: A23A Iceberg

The remarkable occurrence entails a massive A23A iceberg, measuring 4000 square kilometers, which has resided in the area for forty years. Notably, this iceberg, referred to as “A32a,” has recently exhibited a significant increase in its movement speed, capturing worldwide interest.

Renowned specialists categorize this immense A23A ice formation as an “ice island” that drifts in close proximity to the Antarctic coastline. Despite its near-complete separation from the shore since 1986, experts anticipate that the iceberg might soon traverse beyond the boundaries of Antarctic waters.

 Iceberg That Broke Off Antarctica: A32A


To comprehend the magnitude of this immense iceberg, imagine an expanse that is nearly double the size of Greater London or any other significant urban area. Its vast dimensions can be likened to that of a sprawling metropolis.
The background narrative revolves around a Soviet research facility situated in Antarctica, which became detached from the continent in 1986. Concerned about the potential loss of the base and its equipment, the Soviets swiftly organized an expedition to investigate the iceberg.

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A32a iceburg

Surprising details have been uncovered through observations of this iceberg. It has been confirmed that A23a separated from Antarctica, but what was unexpected is that it remained motionless for more than four decades before starting to move again.

Dr. Andrew Fleming, a remote sensing specialist from the British Antarctic Survey, pointed out that the initial theories suggesting temperature changes as the cause of this phenomenon were disregarded. Instead, experts unanimously concluded that the timing was the sole factor behind this event.

Fleming further elaborated that the iceberg, which initially became grounded in 1986, gradually decreased in size, lost its hold, and eventually began its journey.


Initially recorded in 2020, this phenomenon has been affected by changes in wind patterns and ocean currents, resulting in a shift in A23a’s course.

A32a ice burg
A32a ice burg

Forecasts indicate that it will gradually move towards the southern region of the Atlantic Ocean, in close proximity to South Georgia. The potential consequences for the biodiverse island of South Georgia are worrisome. With its abundant population of marine creatures, birds, seals, and penguins, the island could suffer from habitat devastation and disturbances in its food chain if the iceberg approaches nearer.

where is a 76 iceberg now 2023: a32a

In the middle of May 2021, the colossal iceberg known as A-76, which held the title of being the largest floating iceberg in the world, split into three separate pieces. This massive iceberg was formed when it broke away from the Filchner-Ronne Ice Shelf located in Antarctica.

The newly formed iceberg, essentially a fragment of the floating ice shelf, detached from the western side of the ice shelf.

It embarked on a journey through the Weddell Sea and, propelled by ocean currents and winds, it eventually arrived in the South Atlantic near South Georgia by 2023.

This remarkable iceberg spans approximately 170 kilometers (110 miles) in length and 25 kilometers (16 miles) in width. Its shape has been likened to that of a “giant ironing board,” and it is roughly equivalent in size to the region of Cornwall.

At the time of its separation from the ice shelf, it was estimated to have a surface area of 4,320 square kilometers (1,670 square miles). This particular iceberg is referred to as A-76a as of March 2023.

where is a 76 iceberg now 2023: a32a
where is a 76 iceberg now 2023: a32a


In May 2021, Keith Makinson, a polar oceanographer affiliated with the British Antarctic Survey, initially detected the emergence of a fresh iceberg. As the days progressed, specifically by day 148, the iceberg had fragmented into three distinct pieces, namely A-76a, A-76b, and A-76c.

deepest iceberg in the world: a32a

A massive iceberg has broken off from the western side of the Ronne Ice Shelf in Antarctica’s Weddell Sea. This colossal iceberg, known as A-76, currently holds the title for being the largest iceberg in the world, measuring approximately 4320 sq km in size. Recent images captured by the Copernicus Sentinel-1 mission reveal that the iceberg spans around 170 km in length and 25 km in width, making it slightly bigger than Spain’s Majorca island.

This remarkable berg surpasses the previous record holder, the A-23A iceberg, which measures around 3880 sq km and is also located in the Weddell Sea. In comparison, the A-74 iceberg, which broke off from the Brunt Ice Shelf in February of this year, was significantly smaller at only 1270 sq km.

deepest iceberg in the world: a32a
deepest iceberg in the world: a32a

The British Antarctic Survey first spotted the A-76 iceberg, and its existence was later confirmed by the US National Ice Center using imagery from the Copernicus Sentinel-1 mission.

This mission comprises two polar-orbiting satellites equipped with C-band synthetic aperture radar imaging, enabling them to gather data day and night. Consequently, we can observe remote regions like Antarctica throughout the year.

Icebergs typically receive their names based on the Antarctic quadrant where they were initially sighted, followed by a sequential number. If an iceberg breaks, it is then assigned a sequential letter.

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