Latest North Korea earthquake a sign of instability at nuclear test site-experts

SEOUL (Reuters) - A series of tremors and landslides near North Korea's nuclear test base likely mean the country's sixth and largest blast has destabilized the region, and the Punggye-ri nuclear site may not be used for much longer to test nuclear weapons, experts say.

from Reuters: World News http://ift.tt/2yIZ8JV