The first ever (and presumably smallest?) one the US ever did ("Ivy Mike") was two orders of magnitude larger than that (~10MT).
There is no question that the DPRK has fission weapons, but ojbyrne asserted a thermonuclear attack, which I have never seen any indication is within the present or predictable future capabilities of the DPRK.
Oh, hang on. It would appear the DPRK has actually made this claim, according to WP, but it seems to be disputed.
https://en.wikipedia.org/wiki/Thermonuclear_weapon#North_Kor...
Yes, and in fact most thermonuclear devices nowadays are in that range as its more efficient than a smaller number of megaton range bombs. Eg the most common US warhead (fitted to Trident) is the 100 kiloton W76 and each Trident missile can carry 14 of them, each independently targeted.
It’s my understanding that they have designed and produced only fission weapons. I’ve never heard a single piece of information ever that suggests that they can, could, or would produce a fusion bomb.
“possible, even likely” in the context of a DPRK fusion bomb, given what I have seen and read thus far, seems like complete fantasy to me. Do you know something I don’t?