World Largest recorded iceberg — more than three times the size of Los Angeles — breaks off from Antarctica May 20, 2021May 20, 2021 Asha C. Gilbert, USA TODAY Comments Off on Largest recorded iceberg — more than three times the size of Los Angeles — breaks off from Antarctica The world's largest iceberg has broken off in Antarctica at the Weddell Sea. The iceberg is more than three times the size of Los Angeles.