Lightning propagation through the Earth and its potential for methane ignitions in abandoned areas of underground coal mines

T. Novak, T.J. Fisher
Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129)  
Strong circumstantial evidence suggests that lightning has initiated methane explosions in abandoned and sealed areas of underground coal mines.
doi:10.1109/ias.2000.883201 fatcat:cbnwspz6endltekkhrhxfybvsa