There are still ZERO credible videos of the supposed meteor that exploded over Massachusetts yesterday. Skies were totally overcast. NASA says it exploded 40 miles up with the equivalent energy of 300 tons of TNT. The sonic boom is undeniable, and GOES-East picked up a lightning flash (light and plasma), but that's not direct confirmation of a bolide mid-air explosion. That's probably what it was, but again we can't state that definitively 100% as most pundits/media outlets are doing.
Reports for the South Carolina sonic boom on the 28th were even more widespread across the USA, it was definitely a much bigger event and we have ZERO evidence for it being from a bolide mid-air explosion. No eyewitness accounts, video, or satellite flash imagery. Raspberry shake data indicates the sonic boom rumbled for >20 seconds and was more powerful than the Blue Origin New Glenn Rocket explosion that occurred a few hours afterwards in Florida.
No matter how you slice it this is troubling. Either we had two back-to-back powerful mid-air bolide explosions over the USA's east coast, following after a record global fireball surge from March to mid-April, or something else is happening atmospherically (superbolts??) that we're pretty clueless to.