cathylynn wrote:
http://www.aol.com/article/2016/01/06/the-white-house-just-threw-cold-water-on-north-koreas-purported/21292931/
That is why USAF needs to take air samples, earthquake data and satellite data to build a picture. Its too early to make assumptions.Fifty "primary" seismic stations send data continuously to the International Data Center, along with 120 "auxiliary" stations which send data on request. The resulting data is used to locate the epicentre, and distinguish between the seismic signatures of an underground nuclear explosion and an earthquake. Additionally, eighty radionuclide stations detect radioactive particles vented by underground explosions. Certain radionuclides constitute clear evidence of nuclear tests; the presence of noble gases can indicate whether an underground explosion has taken place. I am sure they are gathering every scrap of data to get an accurate data.