Yes, fully random, natural, and the like. Sorry for flaming, But someone posts something like this once a day, and it's annoying as ****.Stop posting if it's not useful. Proof that this is not a chunk error: It's too large, it has layered edges instead of immediately cutting off, and it's natural looking besides being a hole.
Looks natural to me. Just a surrounded valley. If it was a chunk error, you would probably be seeing all the way down into the void.
That's SMP only.
Nope, happens in SP too occasionally.
No, you only get cut-offs in SSP. SMP is when you can see all the way down to the void. If it happens in SSP, it only happens on the edges of the loaded map, and means the map hasn't loaded properly yet.
I'm going to say nope. The edges aren't right for a proper chunk error, it's just weird terrain. I actually once saw something almost exactly like this on an SMP server I was on, but it was a bit deeper and the tree was small.
Chunk errors are very obvious. The cliff edges will be completely smooth, and so will the ground below them usually. You'll often have weird lighting effects, such as totally dark cave holes in the walls which should normally be lit up, and a lot of exposed ores.
There are SSP chunk errors, no one here denied that.
They generally consist of sheer cliffs in an area with sides divisible by 16. They may be lower than the surrounding terrain, or higher. They also may be mismatched biomes. There have in the past been rotational chunk errors. The 16-multiple size is key. Any other size, like this one that is too big, means it isn't a chunk error. An entirely missing chunk is also not a "chunk error," but rather a loading error.
This is an oddly square terrain feature, and there might be a calculation glitch that caused it, but it isn't a chunk, so can't be a chunk error.