Recent Mine fire in Centralia, Columbia County, Pennsylvania, USA.
 
An outcrop coal seam has been ignited from burning waste in a landfill in 1962. All attempts to extinguish the fire were in vain. The underground fire continued burning.  Soil temperatures of 80 degrees celsius and above and carbon monoxide emissions from the soil developed.  

^{Picture: Wikimedia Commons , Author: JohnDS}

In 1984, most of the residents have been relocated to the surrounding townships. Costs of relocation have added up to more than 42 million  US$.
 
Today, fewer than 20 people remain in Centralia and most of the town has been torn off.

^{Picture: Wikimedia Commons , Author: JohnDS}