Allegations of a Chinese nuclear blast may reignite weapons testing
In the afternoon on 22 June 2020, a seismic station in eastern Kazakhstan registered two small earthquakes 12 seconds apart near China’s Lop Nur nuclear test site. Closely spaced jolts can arise from underground explosions followed by a cavity collapse, or simply from earthquakes. But U.S. officials this month asserted the shaking was from a clandestine nuclear detonation—
