I looked it up and you are correct. It is about 35-40 kiloton yield for those two bombs. The graph at 15 kilotons is incorrect.
I also looked up the london number. That was 20000 bombs dropped. German bombers at the time carried 500kg and 250kg bombs, so the 20k number is too high.
For context, Russia has dropped 50000 bombs in Ukraine, with the typical size being 1500kg. So thats about 75k in bombs.
I looked it up and you are correct. It is about 35-40 kiloton yield for those two bombs. The graph at 15 kilotons is incorrect.
I also looked up the london number. That was 20000 bombs dropped. German bombers at the time carried 500kg and 250kg bombs, so the 20k number is too high.
For context, Russia has dropped 50000 bombs in Ukraine, with the typical size being 1500kg. So thats about 75k in bombs.