[KeyLargo]

Unknown Detonation North KoreaAddress:‎ - - Placement on map is approximate North Korea - Category: Unverified listing bbs.keyhole.com This placemarker shows a mysterious bright fireball, 200 feet in diameter and over 255 feet tall. This image does not accurately give the entire time lapse of the event. Therefore, the total blast diameter of the fireball could have eventually been much larger. The the diameter of the 17 kiloton fireball at Hiroshima was .4 kilometers (that's about 1,313 feet). This image appears to still be energetic at a blast diameter of 200 feet. According to reports from CNN.com 9-10 October 2006, North Korea conducted a successul atomic test at 1:36 am (GMT), 9 October2006, 240 miles North East of Pyongyang, in Hwaderi near Kilju City. The 550 metric ton (.606 kiloton) detonation was said to be enough to generate a 4.2 magnitude earthquake readible detectable to U.S. geologists. According to CNN.com, North Korea gave China a twenty minute notice prior to conducting the test, to which China immediately informed the United States. This blast is rather curious considering its location and size.

[TXnMA]

What is the source for that info? The test was supposedly underground. Unless it vented big time, there should have been no "fireball".

I posted a seismogram of the shot at http://www.freerepublic.com/focus/news/2257598/posts?page=227#227, if you are interested.

I'm now working on a composite satellite image of a likely-looking site near the coordinates indicated by seismology...