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If that's the case then it's truly catastrophic. As an example, the Centralia (USA) mine coal-seam fire started in 1962 is extimated to last for about 250 more

If that's the case then it's truly catastrophic. As an example, the Centralia (USA) mine coal-seam fire started in 1962 is extimated to last for about 250 more years. https://en.wikipedia.org/wiki/Centralia_mine_fire https://en.wikipedia.org/wiki/Centralia_mine_fire Assuming we have the technology, removing underground oxygen might help to put out the underground fires, though I can't imagine any process not involving either pumping sea water down there which would make the land sterile for vegetation, or slowly replacing oxygen with CO2 which would be even worse.

blueatlas 7y ago
Carbondale, PA tried flooding and other techniques for the time (1950's), but ultimately the only way to extinguish it was by digging it out. It took about 10 years and it is estimated more earth than the Panama Canal was moved for the dig. It came within 20 feet of expanding into the core of the city and leading to what happened in Centrailia. https://en.wikipedia.org/wiki/Carbondale_mine_fire https://en.wikipedia.org/wiki/Carbondale_mine_fire