What is decoupling? The method US claims China used to conceal its 'secret nuclear test'

2026-02-18 - 06:33

A senior US official claims new seismic data suggests China conducted an underground nuclear test in June 2020. Beijing vehemently denies this, calling the accusation baseless and a political ploy. The US official cited data from a Central Asian seismic station, while the CTBTO noted the events were too small to confirm.