Shenhai Explosion-Ubungqina
Uqhushumbo lwenzeka ngaphakathi kwemida ethile, ngokukodwa ngaphakathi kwimida eqhumayo.
Imida yokuqhushumba kwe-CH4 kuluhlu lomoya ukusuka 5% ukuya 15% ugxininiso lwemethane. Ugqabhuko-dubulo luya kwenzeka ukuba ubungakanani bomthamo wemethane buwela ngaphakathi koku 5% ukuya 15% uluhlu kwaye udibana nedangatye elivulekileyo.