Large texture glitch in ocean

A large texture glitch that appears to be a stretched lava texture (could be wrong) appeared while I was in the ocean. Unsure if my location really mattered, but there was lava nearby. The texture is animated and stretches across the horizon until I dove under water. The glitch persists longer than my video shows, I just wanted to make sure you also saw the other glitch in the distance. (and your upload feature doesn't allow very long videos)