Magnitude of North Korea seismic event bigger than in 2009 test: CTBTO

VIENNA: The magnitude of an unusual seismic event in North Korea was 4.9 on the Richter scale, an international nuclear test monitoring agency said on Tuesday, bigger than the 4.52 measured when the North carried out a test in 2009.

The Comprehensive Nuclear Test Ban Treaty Organisation (CTBTO) also estimated the time for the event at around 0258 GMT.