Dozens of Mysterious New Craters Found in Siberia : DNews — news.discovery.com

More sinkholes have been spotted by satellite in Siberia, prompting calls for urgent research to confirm what's caused them. One of the large craters, referred to as B2, is surrounded by 20 smaller craters, reported the Siberian Times. 'I would compare this with mushrooms: when you find one mushroom, be sure there are few more around," Professor Bogoyavlensky, deputy director of the Moscow-based Oil and Gas Research Institute, told the Siberian Times. "I suppose there could be 20 to 30 craters more."

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