I live in DC. Years ago, on 4th of July we were hiking in the park in DC and heard a really loud boom. We thought it was fireworks. Later walking home we passed by the remains of a house that had exploded because of a NG leak. Fortunately or unfortunately no one was home. I say unfortunately only because if they had been there they probably would have smelled the gas before it go to an explosive level.
Yikes 😳
50 years ago, a regular house several blocks from us blew up from a natural gas leak. When I heard and felt the boom, my first thought was that the very ill-tempered, 300 pound woman who lived downstairs from us had had a tantrum, and slammed her refrigerator to the floor!