[sigmoid10]

Beirut was 2750 tons. So it's slightly more than 7 times as much. Also, one ton of ammonium nitrate is roughly equivalent to 250kg of TNT. If this shipment actually were to explode all at once, the energy equivalent would be roughly 20x0.25=5 kilotons of TNT. That's one third of the Hiroshima bomb's 15 kilotons.

But these are highly oversimplified number games. For example, it's highly doubtful someone could get this to explode all at once without dispersing most of it - even if they were actively trying to cause maximum damage. Nonetheless it's still a monumental safety risk and any port in their right mind would do well to shoo this piece of crap back to Russia.