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’ Nasa said. They believe, were it to strike Earth, it would be the equivalent to detonating 230 kilotonnes of TNT. That kind of a detonation would dwarf the force of the Hiroshima atomic bomb in 1945, which exploded with the force of 15 kilotonnes of TNT.
Read more: https://metro.co.uk/2019/11/14/nasa...article.desktop.share.top.twitter?ito=cbshare
When one considers that we have detonated Hydrogen bombs in the MegaTonne, 230 Kilotonnes is hardly an existential thread; unless you happen to be in the locality.