Last time one on this scale happened, albeit a somewhat larger airburst, it killed potentially up to three people: https://en.wikipedia.org/wiki/Tunguska_event

Last time one on this scale happened, albeit a somewhat larger airburst, it killed potentially up to three people: https://en.wikipedia.org/wiki/Tunguska_event https://en.wikipedia.org/wiki/Tunguska_event 8 megatonnes sounds like a lot, but it's smaller than many actual nuclear weapons, and unlike nuclear weapons, asteroid airbursts are rarely ideally located over cities. Smaller-scale events in the tens of kiloton (ie ~Hiroshima) range happen quite regularly, without anyone really noticing: https://en.wikipedia.org/wiki/Meteor_air_burst#Events https://en.wikipedia.org/wiki/Meteor_air_burst#Events