North Korean nuclear test sets off years of earthquakes

A new study published in Science reveals that North Korea's 2017 underground nuclear test at the Punggye-ri site triggered a series of persistent earthquakes that have continued for years. Researchers analyzed seismic data following the detonation, which was estimated to be the country's most powerful test to date. The explosion caused significant structural damage to the surrounding mountain, leading to a destabilized crust that has experienced ongoing seismic activity. Scientists suggest that the massive energy release altered the local stress field, causing the rock mass to settle and shift over an extended period. This phenomenon highlights the long-term geological consequences of high-yield underground nuclear testing, providing critical insights into how such events impact the Earth's crust. The findings underscore the lasting environmental and geological footprint left by nuclear weapons testing, extending far beyond the initial blast.