On 3 September 2017, a large seismic event was detected near the Punggye‐ri nuclear test site in North Korea (officially known as the Democratic People’s Republic of Korea[DPRK]) by several geophysical monitoring institutions (e.g., the U.S. Geological Survey [USGS] announced it as an mb 6.3 event, and the Comprehensive Nuclear‐Test‐Ban Treaty Organization [CTBTO] announced it as an mb 6.1 event). Within a few hours, North Korea declared it had carried out its sixth underground nuclear explosion, a test of a hydrogen bomb.

This 2017 seismic event immediately attracted the attention of the global geophysical community for a number...

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