Gas Explosions near Boston

It had to be a huge over pressure condition. Which leads to the question of whether they have a safety relief on meters? If so, IDK why there would be so many houses blowing up. I saw pics of some of them, they look like single family homes where you'd expect the gas meter to be outside and venting there couldn't cause it. If the meter is inside, having an over pressure vent would be a real bad idea, unless there is piping to take the gas outside. So, IDK.

What caused it?

Mechanical failure

Crews mis-connected high pressure side to low (work was being done at the time)

Intentional act

Pilots are so small it would be very difficult for that to account for it. The pilot would have to be in a small space that doesn't have a large volume of air and is extremely well sealed. Gas appliances aren't supposed to be in such places and rarely are.

Also an old city with old pipes. Could have caused some marginal pipes to leak and seep into the house. IDK if the high pressure could blow the regulators in the house and if say, water heater kicks on cause a blast.

They have to get this diagnosed and repaired quickly so people can cook, have hot water, and soon heat. It will cost some big bucks too.

That seems to be what they are reporting.

Ed Pawlowski posted for all of us...

Don't worry, the users will pay.