Antarctic Iceberg A23A Continues to Crumble

Iceberg A23A and recently calved Iceberg A23F are visible above South Georgia Island in this true-color corrected reflectance image from the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Aqua platform. This comparison shows the recently calved Iceberg A23F on the upper right corner of the iceberg on the left "A" side from August 17, 2025. 

Move the center swipe bar to the left and see how far both of the icebergs have moved between August 17 and 19 and that Iceberg A23A has rotated almost 90 degrees. There is also evidence of edge wasting on the August 19 image, where the corner of the iceberg is breaking into multiple small fragments.

This true-color corrected reflectance image from the MODIS instrument aboard the Terra platform from August 21, 2025, shows that Iceberg A23F has likely already broken in two since calving from A23A on August 17.

See previous Worldview Images of the Week about Iceberg A23A.

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