Centralia is a borough in Columbia County, Pennsylvania. As a result of a 40-year-old mine fire burning beneath the borough Centralia is now the least-populous municipality in Pennsylvania with just 9 residents remaining. The borough once had seven churches, five hotels, twenty-seven saloons, two theatres, a bank, post office, and fourteen general and grocery stores. During most of the borough's history, when coal mining activity was being conducted, the town had a population in excess of 2,000 residents.
An exposed vein of coal ignited in 1962 due to the standard policy of burning the garbage on a weekly basis in the borough landfill, located in an abandoned mine pit in the southeast portion of Centralia. Attempts to extinguish the fire were unsuccessful, and it continued to burn throughout the 1960s and 1970s. Adverse health effects were reported by several people due to the carbon monoxide produced.
State-wide attention to the fire began to increase, culminating in 1981 when 12-year-old Todd Domboski fell into a four foot wide by 150 foot deep sinkhole that suddenly opened beneath his feet. He was saved after his older cousin pulled him from the mouth of the hole before he could plunge to his probable death. The incident brought national attention to Centralia as an investigatory group (including a state representative, a state senator, and a mine safety director) were coincidentally on a walking tour of Domboski's neighborhood at the time of his near-death incident.
Route 61 has been rerouted around the abandoned portion. However, the underground fire is still burning and will continue to do so for the indefinite future. There are no current plans to extinguish the fire, which is consuming an eight-mile seam containing enough coal to fuel it for 250 years.