2017 North Korean nuclear test

The Democratic People's Republic of Korea (North Korea) conducted its sixth (and most recent to date) nuclear test on 3 September 2017, stating it had tested a thermonuclear weapon (hydrogen bomb). The United States Geological Survey reported an earthquake of 6.3-magnitude not far from North Korea's Punggye-ri nuclear test site. South Korean authorities said the earthquake seemed to be artificial, consistent with an underground nuclear test. The USGS, as well as China Earthquake Networks Center, reported that the initial event was followed by a second, smaller, earthquake at the site, several minutes later, which was characterized as a collapse of the cavity formed by the initial detonation.

2017 North Korean nuclear test
Graphic from the United States Geological Survey showing the location of seismic activity at the time of the test
Information
CountryNorth Korea
Test site41.343°N 129.036°E / 41.343; 129.036
Punggye-ri Nuclear Test Site, Kilju County
Period12:00:01, 3 September 2017 (2017-09-03T12:00:01) UTC+08:30 (03:30:01 UTC)
Number of tests1
Max. yield~50 kilotons of TNT (210 TJ) based on Korea Meteorological Administration -
~260 kilotons of TNT (1,100 TJ) based on ISRO synthetic-aperture radar analysis
Test chronology
2km
1.2miles
South
West
East
North portal
6
5
4
3
2
1
Location of North Korea's nuclear tests
1: 2006; 2: 2009; 3: 2013; 4: 2016-01; 5: 2016-09; 6: 2017;
V
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