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This event occurred in the area of the previous North Korean Nuclear tests. The event has earthquake like characteristics, however, we cannot conclusively confirm at this time the nature (natural or human-made) of the event. The depth is poorly constrained and has been held to 5 km by the seismologist. The Air Force Technical Applications Center (AFTAC) is the sole organization in the U.S. federal government whose mission is to detect and report technical data from foreign nuclear explosions.

A magnitude 3.4 earthquake has been detected in North Korea. The earthquake occurred about 50km (31 miles) from a nuclear test site, monitors say. Previous quakes were caused by weapon tests. Chinese seismologists said it was a "suspected explosion" but South Korea says that it could be a natural quake not caused by a nuclear test. The US Geological Survey (USGS), meanwhile, said it could not yet make a judgment as to the cause. North Korea carried out a massive nuclear test on 3 September which was widely condemned at the UN. The size of Saturday's tremor is smaller than...

Earthquake detected in North Korea, but officials split on whether it was a new detonation China detected a magnitude 3.4 earthquake in North Korea that it called a "suspected explosion" South Korea's weather agency said it believed it to be a natural earthquake Previous quakes from North Korea have indicated nuclear tests China's earthquake administration said on Saturday it had detected a magnitude 3.4 earthquake in North Korea that was a "suspected explosion", but it was still unclear whether the nation had actually conducted a new nuclear test. Amid a growing war of words between Pyongyang and Washington, Chinese officials...