North Korea tremor emitted energy double that of last nuclear test: South Korea

SEOUL (Reuters) - North Korea's man-made earthquake on Friday emitted energy that was double that of its nuclear test in January, South Korea's meteorological agency said. The agency said it could not conclusively say North Korea's seismic activity was a nuclear test but said the pattern was similar its previous tests. (Reporting by Ju-min Park; Editing by Raju Gopalakrishnan)