Mount Mantap is a mountain whose peak at 2,194 meters is suffering from tired mountain syndrome.
For what is this
North Korea does not stop its nuclear tests on this mountain.
"What we're seeing in North Korea looks like a kind of stress on the ground," said Paul G. Richards, a seismologist with the Lamont-Doherty Earth Observatory at Columbia University.
Since 2006, about six nuclear tests have been conducted at the test site known as Punggye-ri.
During the massive detonation on September 3 that triggered a 6.3 magnitude earthquake, the mountain visibly changed. Since then, that region that is not known for its natural seismic activity has had three more earthquakes.
That day, the regime of dictator Kim Jong Un affirmed that it had fired a hydrogen bomb, and that - according to the official media - it had been a "perfect success".
On September 3, 2017, just eight minutes after North Korea's sixth-largest underground nuclear test was conducted, a 4.6 magnitude earthquake was detected at the Punggye-ri nuclear test site.
Two similar earthquakes occurred on September 23 and October 12.
After these earthquakes, a lot of media speculation was unleashed about the inadequacy of the Punggye-ri nuclear test site.
Now the organization 38north.org has said that “based on the severity of the initial blast, the post-test tremors, and the degree of disturbances observed on the surface, we have to assume that there must have been substantial damage to the network of existing tunnels under Mt. Mantap ”.
With information from: