North Korea’s Nuclear Test: Another Fizzle?
 |
| The North Korean nuclear test on May 25, 2009, was “heard” loud and clear around the world despite its apparent limited size. Detection of small, clandestine nuclear tests seems to work. |
.
By Hans M. Kristensen
The Korean Central News Agency reportedly has announced that North Korea “successfully conducted one more underground nuclear test on May 25 as part of measures to bolster its nuclear deterrent for self-defense.” Several news media reported that the Russian Ministry of Defense estimating the test had a yield of approximately 10 to 20 kilotons.
Yet the preliminary seismic data published by the U.S. Geological Survey (USGS) shows that the test had a seismic magnitude of 4.7, only slightly more powerful than the 4.3 of the 2006 test.
Was it another fizzle? We’ll have to wait for more analysis of the seismic data, but so far the early news media reports about a “Hiroshima-size” nuclear explosion seem to be overblown.
Update: CTBTO’s initial findings.
.
Grant funds research of AI’s impact on nuclear weapons, biosecurity, military autonomy, cybersecurity, and other global issues.
FAS estimates that India has produced enough weapons-grade plutonium for up to 210 nuclear warheads, but has likely assembled closer to 172.
Unique social media images reveal the likely retirement of an old Indian nuclear-capable system.
The Federation of American Scientists applauds the United States for declassifying the number of nuclear warheads in its military stockpile and the number of retired and dismantled warheads.