They just had a 3.8 magnitude earthquake 14 miles from Pyongyan which is way to close to be a nuke test. Maybe a bunker load of bombs or rocket parts went boom. We have been putting some military payloads in orbit recently. Makes one wonder.
Tungsten projectile fired from high altitude? Kinetic force of a big Moab or a small tactical nuke without any fallout. Just saying.
There have been eight earthquakes there in the last couple weeks.
The 3.8 one was at a depth of 10km.