It’s on the other side of the mountains. I’m thinking this was nearer to Wamena or Mulia. I bet the mine didn’t feel it.
You’re not alone...earthquake on N.korea Border..
Moderate earthquake...China/russia/n.Korea border April 6, 2013
http://earthquake-report.com/2013/04/06/moderate-earthquake-china-russia-north-korea-border-on-april-6-2013/