// Risk Intelligence
| Risk Score | 8 / 10 High |
| Facility Type | ☣ Chemical / Industrial Facility |
| Operator / Branch | Various / PA DEP |
| Host County | Columbia County PA |
| Nearest City | Pepperell MA |
| Primary Risk Radius | 5 miles |
| Secondary Risk Radius | 25 miles |
// Strategic Significance
The Centralia underground coal mine fire has burned continuously since 1962 making it the longest-burning mine fire in US history. The fire generates toxic carbon monoxide and carbon dioxide gases and has caused ground subsidence swallowing roads and yards. The borough of Centralia was almost entirely evacuated by the 1990s. The fire could burn for another 250 years.
// Civilian Impact Assessment
The remaining residents of Centralia face ongoing toxic gas exposure and subsidence risk. Columbia County communities near Centralia face potential expansion of the fire underground. The fire has consumed the entire borough leaving a ghost town.
// Evacuation & Shelter Guidance
Centralia residents should have carbon monoxide detectors. Columbia County communities near the fire should monitor for ground subsidence and gas emissions.