9 October 2016

Satellite Imagery Detects New Activity at North Korean Nuclear Test Site

Jack Liu
October 6, 2016

North Korea’s Punggye-ri Nuclear Test Site: Activity Spotted at All Three Portals

Recent commercial satellite imagery of the Punggye-ri Nuclear Test Site from October 1 indicates continuing activity at all three tunnel complexes that could be used to conduct a nuclear test. Activity at the North Portal where the September 5 test occurred, may be for a number of purposes including collecting post-test data, sealing the portal or preparing for another test. There is also increased activity near one of the two entrances at the South Portal where excavation stopped in 2012. The purpose of this activity is also unclear although the portal is assumed to be capable of supporting a nuclear test once a decision is made to move forward.

North Portal

Commercial satellite imagery from October 1 shows a large vehicle, possibly a truck, near the entrance of the North Portal. The large canopy in the parking lot that has been present for the past two months remains in place. There is no evidence of new excavation but there appear to be boxes or material around the side of the main building. One possible reason for this activity is to collect data on the September 5 test although other purposes cannot be ruled out, such as sealing the portal or other preparations related to a new test.

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