4 ms·Not the kind of methane explosions you're thinking, more like small cold eruptions.by jojobas 6y agoNot the kind of methane explosions you're thinking, more like small cold eruptions.Cthulhu_ 6y agoBubbles popping, I'd say.simonh 6y agoSmall... compared to what. Did you see those pictures? Also not cold, friction causes electrostatic discharges that ignite the gas.jojobas 6y agoCompared to other eruptions, i.e. volcanoes.simonh 6y agoSo basically that makes all bursts on Earth in recorded history small, other than volcanoes. Which puts these methane bursts in the same 'small' category as underground nuclear tests.