In North Korea, a 3 point 4 magnitude earthquake reported to have occurred near a nuclear test site where previous quakes have occurred during weapons' tests<br/><br/>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. <br/><br/>North Korea carried out a massive nuclear test on the 3rd of this month which has been widely condemned at the UN. The size of today's tremor is smaller than that usually detected when North Korea has tested weapons.