Andrei Plekhanov, a senior researcher at the Scientific Research Centre of the Arctic, said on Thursday that the crater was mostly likely the result of a "build-up of excessive pressure" underground due to rising temperatures in the region.
Plekhanov on Wednesday travelled to the crater, some 30km from the Bovanenkovo gas field in the far northern Yamal peninsula. He said 80% of the crater appeared to be made up of ice and that there were no traces of an explosion, eliminating the possibility that a meteorite had struck the region.
A 60m wide crater discovered in far northern Siberia. (File, AP)