Mysterious sound came from underwater extraterrestrial base at the bottom of the Pacific Ocean

Upsweep may have been tracked to an undersea South Pacific mountain that was not previously identified as a "live" volcano, although this is still unconfirmed.
Now, next to the alleged location where the mysterious sound came from is a huge underwater structure and while of course it can just be a rock formation, it just doesn't look natural.
Source video: https://youtu.be/LwgK62Pkk9g

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