::: Circles form Triangle- Caroline and Marshall Islands

At an altitude of 21,955 meters, interesting circular formations can be seen near the Caroline and Marshall Islands.  These features are similar to the Belize patterns shown in another atoll region off the coast of the Yucatan peninsula.  I keep wondering if the circular features could be related to each other and if they were created under similar conditions.  The circles are definitely unusual formations and many appear to be perfect circles.

Almost resembing an alien underwater landscape, a high resolution, 1m per pixel image reveals the circular formations under the shallow water.  A few of the circular areas appear above the surface of the water and they almost seem to glow due to their light color.  The circles have also been spotted in the Bahamas region along with strange, unexplained linear features.