Some 20 craters formed recently after explosions of bulging permafrost mounds on the Yamal peninsula. The cause is believed to be a build up of methane triggering blowouts which send ice & soil hundreds of metres from epicentre. The latest of such mounds exploded in summer 2020 pic.twitter.com/P8hAFb3sPr

— The Siberian Times (@siberian_times) February 26, 2021