How can an earthquake happen at 0 km ?
Collapse or detonation my guess.
I saw some photos of N.Koreans homes in villages near the site area...older frail bildings went down...others plaster fell off the walls After Kims’ last Missile went off....people pretty shook up.
It’s stricking to see N.korean’s in the square watching these Missiles go off.....They are fully propaganized to ‘believe’ this is Kim protecting them from US attacking them. They haven’t a clue this is Kim threatening the world.