What are these mysterious craters?

What are these mysterious craters? - Photography of Grayscale Tunnel

Flying over southern Oregon or northern California, I saw these strange shapes. They look like burial mounds but are much much bigger...

Mysterious craters

Can anyone tell me what they are?






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What are these mysterious craters? - Man in Black Suit Standing Beside Woman in White Dress Shirt
What are these mysterious craters? - Waxing white moon with gray spots illuminating on foggy sky at bright night
What are these mysterious craters? - Car Passing on Road Between Trees



What is causing craters in Siberia?

Methane Bombs Create Huge Sinkholes & Icy Explosions In Siberia's Permafrost. Gas explosions caused by climate change are currently taking place across the icy landscape of Siberia. The phenomenon has been noticed only recently and has created random craters in different parts of the country.

What are the holes in Siberia?

They're part of the Siberian tundra, a massive stretch of land in Russia characterized by a layer of permanently frozen soil just below the surface. And, as scientists have found, the holes, which are roughly 65 feet across when first formed, don't show up quietly \u2014 they blast into existence.

In what part of the world have 17 mysterious craters appeared since 2013 -- the most recent of which was explored and mapped using drone technology?

It was the 17th hole to appear in the remote Yamal and Gyda peninsulas in the Russian Arctic since the first was spotted in 2013, mystifying scientists. The craters are thought to be linked to climate change. Drone photography, 3D modeling and artificial intelligence are helping to reveal their secrets.

How deep are the craters in Siberia?

Giant craters, some as deep as 30 meters, are mysteriously appearing in Siberia. The violent explosions are expected to increase. Since 2014, geologists at the Skolkovo Institute of Science and Technology in Russian have located 17 colossal craters in the far north of western Siberia.



The mystery of Siberia's exploding craters - BBC REEL




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Anton Atanasov, cottonbro, David Selbert, Pedro Figueras