Satellite imagery of the Punggye-ri nuclear test site from 12 April shows continued activity around the facility

Maximum yield in kilotons of North Korea’s previous nuclear tests. ‘Little Boy’, the nuclear bomb dropped on Hiroshima had a yield of 15 kilotons

30

16

10

5.4

2

Oct

2006

May

2009

Feb

2013

Jan

2016

Sep

2016

Kim Jong-il

Kim Jong-un

China

Punggye-ri

nuclear test

site

North Korea

Pyongyang

DMZ

Seoul

100 km

100 miles

Maximum yield in kilotons of North Korea’s previous nuclear tests. ‘Little Boy’, the nuclear bomb dropped on Hiroshima had a yield of 15 kilotons

30

16

10

5.4

2

October

2006

May

2009

February

2013

January

2016

September

2016

Kim Jong-il

Kim Jong-un

China

Punggye-ri

nuclear test

site

North Korea

Pyongyang

DMZ

Seoul

150 km

150 miles