World’s largest iceberg named A68a by the National Ice Center is on course to collide with South Georgia Island, which is a habitat of penguins and other aquatic wildlife. Three years ago, the iceberg broke off an Antarctic ice shelf. It is just 31 miles away from the coast of South Georgia Island.

The iceberg could collide in the next few days in case the ocean currents push it northward.

The thickness of the iceberg is close to 650 feet and its nine-tenth part is under water. The dimensions of the iceberg is 93 miles long and 30 miles wide.

“If it does hit the island, it will hit the undersea shelf and ground offshore. Note that the island and iceberg are about the same size!” Brigham Young University’s David Long, who has been tracking the iceberg, said as quoted by The Washington Post.

“I originally thought that A68a would pass south of South Georgia Island, then be swept back to ground on the east side of the island like previous similarly large icebergs,” he added.

Millions of penguins, seabirds, seals, blue whales and other aquatic animals will be affected if the iceberg collides with the coast of the island.

“It is so large that the local wildlife will struggle to get to food sources, and we may see a population crash,” Long said.