Quite loud, certainly, but not as loud as I would have expected. From my flat I could only see the roof of those houses, and the roofline now has a gap in it. Also, a thick shroud of smoke. Took several minutes for the police and fire brigade to arrive, and about ten for the air ambulance. Could briefly see flames above roof level. The street in front of my house is full of police cars and people pointlessly standing around. From eavesdropping, there seem to have been “three casualties” and “a smell of gas”.
From your location I think you must be talking about this. A serious explosion with people injured and two still missing. Maybe Twickster should fix the title and people should knock off the jokes.