The effect of abundant precipitation on coal fire subsidence and its implications in Centralia, PA

► Abundant precipitation in 2012 resulted in coal subsidence. ► Multiple beds from Buck Mountain coal may potentially be burning. ► Fire rate of movement and temperature decrease may be due to mine roof collapse. ► O2 and CO2 vent gases reveal subsurface air flow. ► Rock softened due to excessive precipitation and steam causing subsidence.