I’m not buying this. WHERE are the pieces, and parts of an object that weighed so many tons! I think it was like a flat rock, that boys skip across ponds...and when it hit the atmosphere of the Earth, it skipped back into space! OR, there was some military experiment using high frequency SOUND WAVES to see how they could destroy a city instead of using explosives. This story doesn’t settle anything for me.
Most meteors are vapourized in the atmosphere, but if there is anything left one of two things can happen: Those with high metallic content will impact the surface of the earth, while rocky meteors tend to explode in the air. The amount of energy released is calculated from the mass and velocity of the object (E=MV^2/2).
The Russkies report three different impact sites from larger chunks; the damage to the town was from the shock wave, but small chunks of this will be found for some time, on the ground; much of the object just turned to (very hot) dust. And no, it didn’t skip back into space.
It has been reported elsewhere that hundreds of small chunks have been collected, and people are still looking. I would suspect that some of the larger ones would be hidden until the finder can figure how to get top dollar for it.