After North Korea’s latest nuclear test, scientists are worried that more underground explosions in the isolated country’s rocky north could set the stage for a deadly volcanic eruption not unlike the one that NASA fears could be brewing in the Yellowstone caldera.
Following the North’s sixth nuclear test, which produced a blast that, by some estimates, was as powerful as 300 kilo hertz, Chinese authorities have stepped up radiation monitoring and even closed part of their border with North Korea as fallout fears have intensified.