Within The Black

A Google Earth image of the ocean floor shows a sizeable circular anomaly that some suspect could be a submerged flying saucer that measures a staggering five miles in diameter. The very weird find, which can be seen in detail here, was made by indefatigable UFO researcher Scott Waring as he was studying photos from the popular satellite mapping service. While 'exploring' the bottom of the Pacific Ocean, the anomaly hunter was surprised to see what appears to be a perfectly round object submerged in the waters off the coast of Peru remarkably close to where the famed Nazca Lines are located.
https://www.coasttocoastam.com/article/ ... gle-earth/

I checked the link shred by the OP, the article does not give much detail on why Scott Waring thinks that it is a submerged UFO. The photo shared here or on the article does not clearly show the object. I believe Scott Waring saw the object as submerged UFO because he believes in UFO.