Its impact against the Earth could cause an explosion equivalent to 230 kilotons of dynamite. You have to calculate that the Hiroshima bomb had only 15 kilotons of power.
230 kt divided by 15 kt = 15.3 times the Hiroshima bomb.
Math, much?
Regards,
The largest nuclear bomb ever exploded on earth (10/30/61) is said to have had a yield of 50 megatons of TNT, or 50,000 kilotons.
That would be a bit over 3333 Hiroshima bombs.
Amazingly, the earth didn’t end then and there.