[taxcontrol]

My theory - when the impact the Chicxulub crater was created, the shockwave created millions of smaller fractures in the earth’s crust in that region. This allows smaller volumes of fluids and gasses to escape on a regular basis.

[pas]

I think it is probably graboids.

[markman46]

You are probably closer to the real cause.

[CPT Clay]

Very Plausible

[joe fonebone]

I got another theory..
These underground “tubes” are actually quite common and act as arteries and veins, transporting lava about, helping to heat the surface.
When this flow is interrupted, it forms an aneurysm that eventually bursts (volcano)..