2017 North Korean nuclear test, Nuclear test site in Punggye-ri, North Korea.
The 2017 nuclear test was an underground detonation at Punggye-ri that generated seismic activity measuring 6.3 on the Richter scale. International monitoring stations detected the seismic waves that traveled across the Korean peninsula.
North Korea conducted its sixth nuclear test on September 3, 2017, with an estimated yield of 100 to 250 kilotons. This represented a significant step forward in the country's weapons development program.
The test demonstrated North Korea's determination to develop nuclear capabilities despite international sanctions and diplomatic pressure from neighboring countries.
The test site is not open to public visits. Information about the location comes mainly from satellite imagery and seismic data analyzed by international observers.
The explosion caused multiple tunnel collapses at the test site and resulted in environmental damage including tree death and groundwater depletion in the surrounding area. These consequences were documented through satellite observations in subsequent years.
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