Could this just be JPG artifacting?

Diego Garcia Underwater Bases Exposed!

In a recent DAHBOO77 video, he shows images that appear to be underwater facilities at Diego Garcia, which is the military base that many think the missing Malaysia Flight 370 was taken to. There are many theories about the plane that mysteriously disappeared on March 8, 2014, quite a few include this Diego Garcia base, which has put the whole facility in the spotlight.

It does clearly show something below the water in the images our videographer highlights and they do appear to be building-like structures, but as always it is up to the reader to decide. If you don’t believe these are buildings down there, perhaps some might like to chime in on what they DO think they are.