N. Korea official: U.S. efforts to rid nukes a ‘wild dream’

North Korea’s deputy U.N. ambassador said Friday that U.S. efforts to get rid of his country’s nuclear weapons through military threats and sanctions are “a wild dream.”

Well I went hunting...and discovered more regarding the seismic readings from those S. Korea showed from the readings they took when N.Korea did the underground nuclear test. As follows.....

...”Seismic measurements can provide other clues as well. For example, explosions should, in theory, only produce compressional (“P”) waves within the body of the earth, whereas earthquakes also generate shear (“S”) waves, ones for which the displacement of the rock is transverse to the direction of wave propagation. ........Similarly, explosions aren’t normally able to create Love waves, a transverse seismic wave that travels along the earth’s surface, whereas earthquakes can.

Despite these complications, ‘seismic measurements are pretty reliable for monitoring nuclear tests’, ...for the simple reason that they can tell you where and when the energy was released........ If the event took place tens of kilometers deep within the earth, or far out at sea, for example, chalk it up to an earthquake..... If, on the other hand, if it was within a few kilometers of the surface and happens to be located on North Korea’s Punggye-ri Nuclear Test Facility . . . well, you won’t need an advanced degree in seismology to figure out what happened.”.......

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