blobrana wrote:
Hum,
From initial reports of a 300-metre crater - it would require the force of a small nuclear bomb (or a large 20-metre rock)
However that possibility seem unlikely now.
The information is still a bit sketchy, but a possibility offered by a few ppl is that it was a large methane bubble that broke through to the surface.
Probably some poor guy got buried under the ice generations ago having had sprouts with his xmas dinner...
