The reef was first discovered on October 20, as scientists completed the underwater mapping of the coastal area of the Great Barrier Reef.
At 500 meters, it is taller than the Empire State Building (381 meters to the top floor), the Sydney Tower (305 meters) and the Petronas Twin Towers (451.9 meters).
Using an underwater robot called SuBastian, the team surveyed the reefs on Sunday, and broadcast a live survey of the area.
Experts say the base of the “blade-like” rock is 1.5 kilometers (almost 1 mile) wide, rising 500 meters to its depth of 40 meters below the ocean floor.
The newly discovered quarry is one of many in the Great Barrier Ore and is the first to be discovered in 120 years.
Schmidt Maritime Institute
Robin Beaman, who led the outreach, said he was “surprised” by the findings.
“To not only see the 3D maps involved in the details, but also to see this discovery with SuBastian is unbelievable,” he said in a statement.
“This unexpected discovery confirms that we continue to look for unknown structures and species in our oceans,” Wendy Schmidt, co-founder of the Schmidt Ocean Institute, said in a statement.
“The state of our knowledge of what is in the oceans has been limited for a long time. Because of the new technology that works our eyes, our ears and our hands in the deep ocean, we have the ability to explore like never before.
The Barrier Reef, the world’s largest coral reef, covers an area of nearly 133,000 square kilometers and is home to more than 1,500 species of fish, 411 species of hard fish and dozens more.
But the reef is facing a crisis – a recent study showed that it has lost 50% of its population in the last three decades, with climate change being a major driver of reef disruption.