For comparison, here is the link to the recent quake off the BC coast. You don't...

sandworm101 on Jan 6, 2016 | parent | context | favorite | on: North Korea announces successful hydrogen bomb tes...

For comparison, here is the link to the recent quake off the BC coast. You don't need to be an expert to realize the differences between a bomb and a natural quake.

Natural: http://ds.iris.edu/ds/nodes/dmc/tools/event/5169662

Bomb: http://ds.iris.edu/ds/nodes/dmc/tools/event/5170265