Not terrorists related so they say...live feed over 100 homes on fire..
Over pressurized gas lines.
The main lines are under a LOT of pressure. As it feeds out there are regulators to bring the pressure down to what the smaller lines can handle, usually two, one main and one backup. What experts are saying is that both failed somewhere and the regulators at the houses couldn’t handle the increased pressure.
Some places blew up, etc, some didn’t. It takes a special mix of NG and air and spark to create a blast.
Columbia is gonna have some expensive torts headed their way.
google “natural gas dirty sisters”