Japanese English language newscast this morning reported the estimated yield of NoKo most recent test was 70 kilotons.
Boosted fission or two stage?
That’s a very poor showing for a hydrogen weapon...but it does fit the profile of a boosted EMP design.
The only way to get it to New York is by San Pan..
Set it off high in the atmosphere and there go all Electrical devices in good part of US and Canada including all cars, ships, tractors etc. I think thebdeath toll is supposed to be 75% or so in affected area due to starvation, lack of medical care and breakdown in society. Not much of anything will work in area hit by EMP.