reply to post by soficrow
One of the other things that geologists never seem to mention is that earth is honeycombed with gigantic underground gas chambers both under land
masses and underwater. These chambers have smaller ducts that connect them that can at times become clogged which can cause a volcanic eruption
either underwater or on land masses.
Maybe at some point in the past someone in power said don't mention those anymore; they don't have the need to know.