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Still Waters

Drone flies inside giant permafrost crater

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Still Waters

Some 20 large craters have formed in recent years after explosions of bulging mounds in areas of the Russian Arctic.

The cause is believed to be a build up of methane gas triggering blowouts which send ice and frost soil hundreds of metres from the epicentre.

In summer 2020, researchers from the Oil and Gas Research Institute (OGRI) of the Russian Academy of Sciences and colleagues from Skolkovo Institute of Science and Technology (Skoltech) surveyed the newest known 30-metre deep gas blowout crater on the Yamal Peninsula, formed in summer 2020.

It was vital to get to it quickly because these holes rapidly fill with water, becoming lakes pockmarking the surface.


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