Hydrogen gas (H_2) is found in coal rocks by the author's previous works and it has possibility of triggering therisks of gas explosion and coal-and-gas outburst at underground-mining location. Part of the H_2 comes directly from the coal byits chemical evolution and the rest is probably contributed by the earth degassing. In seismology, there is such close relationbetween the earth degassing and the earthquakes that the idea of the earth degassing has served to promote impending earth-quake prediction. "13/11" continual accidents of five mining-gas explosions, happening in Shanxi coalfield, initially on thir-teenth of November in 2001, might resonate with "14/11" violent earthquake (Ms = 8.1) which occurred on the next day in themiddle of Kunlun Mountains, and that possible anomalous emission of the gases from deep earth might be primitive source ofthe resonance.