A massive iceberg, once separated from Antarctica, continues its northward drift, now near Elephant Island. This colossal ice floe, spanning 4,000 square kilometres, earned the designation A23a after breaking away from Antarctica in 1986. Initially ensnared near Antarctica’s seabed for an extended period, the iceberg resumed its movement in November 2023.
Driven by powerful waves, the iceberg has been propelled further north, positioning itself between Elephant Island and the Southern Orkney Islands. Elephant Island lies 250 kilometres from Antarctica’s northernmost point, while the Southern Orkney Islands are 400 kilometres away. Waves of up to 4 meters pounded on it and knocked off pieces.
A23a, slightly smaller than the total area of a Essex county, boasts ice thicknesses of up to 400 meters. Scientists estimate its frozen freshwater content at a staggering trillion tons. Ultimately, as the iceberg encounters warmer waters, it will gradually melt and dissipate.
