Beirut 2020 explosion vs a nuclear explosion with the same energy Port Beirut disaster (ammonium nitrate explosion, 4 August 2020) was equivalent to 1.15 kt of TNT (4.4 TJ). It falls in the range of a small nuclear device (20 t TNT for the smallest, 15 kt TNT for Little Boy, which was dropped on Hiroshima).
What is the difference between such an explosion, and a nuclear device of a similar scale?
Ionizing radiation and nuclear fallout are obvious. But when it comes to its destructive power related to heat, pressure, range, etc - would the outcomes be equivalent?
See:

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*Largest artificial non-nuclear explosions - Wikipedia

*Beirut Blast: How does yield of 2,750 tonnes of ammonium nitrate compare against Halifax explosion, Hiroshima bombing?
 A: First of all, let me say that I almost started crying when I saw what happened in a country already in a miserable state. I really felt sorry for those poor people. Here in Holland, there was once a huge explosion in a firework factory, which wiped away a whole area of houses, but in Beirut that was just the trigger!
It's noticeable that the smallest A-bomb releases about the same amount of energy as released in the Beirut explosion (see here).
The Beirut explosion is somewhat like a "smeared out" version of the explosion of an A-bomb explosion (from here I assume an equal power yield of the explosions), except that the Beirut explosion stayed put on the ground, which absorbed more energy than in the case of an A-bomb, meaning that there is more energy left for it to cause horror, misery, and destruction.
Obviously, the energy released in the Beirut explosion originated in a much bigger volume than the small A-bomb. Because of the energy being released from a much smaller volume in an A-bomb explosion, the heat is enormous (10 000 000 Kelvin) and is the main form of energy released (about 99%, after a short flash of gamma radiation). This has the effect that the pressure on the surrounding air is enormous and causes much more damage than the shock wave in Beirut.
The intense heat fireball in an A-bomb (if just as in Beirut the explosion takes place on the ground) doesn't stay on the ground but rises up fast, causing more injuries (burning wounds). Because of this, the shock wave has more impact too.
The Beirut explosion caused of course a huge amount of destruction and people's suffering too. Most of the energy released in that case was turned into kinetic energy of the surroundings.
But comparing the two I'm sure the death and injury toll would have been much higher when an equivalent A-bomb was detonated at the place of the explosion.
