Buubles of methane are always rising to the surface of the planet, and large and small buubles of gas that reach the surface are expelled into the atmosphere.
This mechanism is what really causes earthquakes.
Sometimes the methane bubble spontaneously combusts and burns as it leaves the ground, like it did in a lake in Turkey about a decade ago.
Interestingly, methane cannot support flight.
An aeroplane would simply drop out of the sky if it tried to fly through methane.
Birds have the same problem.
I hope this puts you somewhat at ease, I see you panic every day, and try to induce panic and fear in your posts.
What you really should fear, Elliott, is how corrupted the information in your head(lines) is.
Quiet reflection and a true education will make you feel better.