“This causes several assumptions on the cause of events such as a massive leak of natural gas”
They didn’t even have pipelines back then.
They did have natural gas.
a massive release and explosion of permafrost or methane gas perhaps? or climate change .. its mysteries are so baffling..
(Buzzer Sound) Wrong.
They didn't have pipelines there, but the first Natural gas pipeline was in 1859 - almost a half century earlier. Coal gas goes back even earlier. Atlanta has a gas system that dates to 1856; London and Baltimore much earler.
Large bubbles of methane come up from the ocean floor all the time. It “could” happen.