North Korea’s sixth nuclear test was several times more powerful than the 15 kiloton-yield ‘Little Boy’ bomb dropped on Hiroshima

100

(S Korean

estimate)

10-12

6-7

5-6

4

<1

Oct

06

May

09

Feb

2013

Jan

2016

Sept

2016

Sept

2017

Kim Jong-il

Kim Jong-un

Yanji

China

Punggye-ri

nuclear test

site

North Korea

Pyongyang

Sea of Japan

DMZ

150 km

Seoul

150 miles

100

(S Korean estimate)

10-12

6-7

5-6

4

<1

Oct

06

May

2009

Feb

2013

Jan

2016

Sept

2016

Sept

2017

Kim Jong-il

Kim Jong-un

Yanji

China

Punggye-ri

nuclear test

site

North Korea

Sea of Japan

Pyongyang

DMZ

Seoul

150 km

150 miles