The Mysteries of the Mariana Trench

Sounds from the Deep

Weird whale noises are one thing, but when scientists managed to capture audio from the deepest ocean pit on the planet in 2016, things got all sorts of creepy. You’d expect that the Challenger Deep would be a serenely quiet place at 6.7 miles beneath the surface, but recordings show that the area is actually chock-full of sounds that seem like something out of a horror movie.

Yes, the deep is full of screeches, moans and rumbles, and while the occasional sound can be traced back to a whale or an earthquake, a whole bunch of them remain a mystery. Perhaps the strangest thing about the recordings is the fact that you can often hear the surface sounds shockingly clearly, and boat propellers and typhoons are clearly audible on some of the tapes. In fact, marine scientists are kind of worried that man-made sounds will only increase in the ocean, even in the pits of the Hadal Deep. So, you know. When the creatures of the deep inevitably rise against us surface dwellers, there’s a fair chance it will be because they’re just coming to complain about their noisy upstairs neighbors.