In the next ring, from 1.6 miles to 3.1 miles there were 80,300 people and 1700 killed, or about 2% killed.
Overall, within 3.1 miles, the percent killed was 26%.
Hiroshima was ~21 kilotons, or 21,000 tons TNT eq, and the Russian Cousin of All Big Booms here is 11 tons equivalent, yet they are claiming superior performance to the Hiroshima device.
While I have the greatest respect for the Russian people, I fear that this report misrepresents the facts, so I say
Bravo Sierra.
Given the same amount of time we'd have improved on our first atom bombs and made them much more lethal, or damaging, or whatever.
Time marches on and science progresses.
In any case, I'd class it as a genuine "WMD"...