A23a first broke off the Antarctic coast in 1986. It is the world’s oldest and largest iceberg.
| Aspect | Description |
|---|---|
| Origin | A23a first broke off the Antarctic coast in 1986. It is the world’s oldest and largest iceberg. |
| shape | Tooth-shaped |
| Length | Nearly 4,000 square kilometers (twice the size of greater London) |
| Thickness | Up to 400 meters thick in places |
| Volume | It contains an estimated one trillion tons of fresh water |
| Location | Currently drifting between Elephant Island and the South Orkney Islands |