The Sri Lankan town of Pallekelle is known across the continent for its cricket stadium – less for auxiliary seismic station AS100 (lower right).

Defusing the Nuclear Powder Keg

Defusing the nuclear powder keg (The Hindu)

Jayantha Dhanapala,  President of Pugwash and former UN Under Secretary-General for Disarmament Affairs, calls upon Asian nations to follow Indonesia’s example and ratify the CTBT: “Ratifying the CTBT is not only a matter of principle. It is not only about supporting world peace and the environment. It is in our security interests.”

Read the op-ed here.

Niue signs the CTBT

On 10 April, Niue, an island nation located in the South Pacific and associated with New Zealand, became the 183rd State to sign the CTBT, consolidating the Pacific region’s firm stand against nuclear testing.

Read the press release here.

Capacity Development Initiative – reloaded

Online registration is now open for the Intensive Policy Course organized from 16-20 July 2012 in Vienna by the CTBTO as part of its Capacity Development Initiative (CDI). The course will offer comprehensive training in the technical, scientific, legal and political aspects of the CTBT.

Read more and register online here.

Tour the CTBTO!

We are pleased to offer tours of the CTBTO exclusively for NPT Preparatory Commission participants. The tours will include a visit to the radionuclide rooftop station, the International Data Centre and a demonstration of on-site inspection equipment. Places are limited and will be distributed on a first-come, first-served basis.

For times and registration see here.

Infamous Anniversaries – Badger

59 years ago, on 18 April 1953, the U.S. Badger test was conducted at the Nevada Test Site. The tower shot was part of the Upshot-Knothole series, involving some 3,000 troops. The series was one of the most fallout-intensive for the servicemen involved and populations downwind.

Read more here.

North Korea says no longer bound by nuclear test moratorium (Reuters)

The UN Security Council strongly condemned the attempted rocket launch by North Korea on 13 April. In a presidential statement it warned it would take further action against the country in the event of a new missile launch or nuclear test. North Korea dismissed the statement and declared it was no longer bound by a moratorium on nuclear testing previously negotiated with the United States.

Read the article here.

UN Rapporteur on Marshall Islands (OHCHR)

UN Special Rapporteur for Human Rights Calin Georgescu urged a durable solution for the displaced indigenous populations of the Marshall Islands, which he found to be still suffering the consequences of the nuclear testing 60 years ago.  “They feel like ‘nomads’ in their own country, and many have suffered long-term health effects,” said Georgescu.

Read more here.

NAS report on CTBTO verification capabilities

On 30 March 2012, the U.S. National Academy of Sciences held a public briefing in which a panel of high-level experts presented and released the unclassified version of a report entitled “The Comprehensive Nuclear Test Ban Treaty: Technical Issues for the United States (2012).” Comments on this report by Arms Control Association, The Bulletin, Hazel O’Leary, American Security Project and David Hoffman.

Read the full report here.

North Korea Nuclear Test: How Will We Know? What Could Happen? (National Geographic)

A third nuclear test by North Korea will not go undetected due to the CTBTO’s monitoring system, which also detected the two previous tests in October 2006 and May 2009. Interview with John Pike, director of

Read the article here.

Scientist says sound signal from exploding meteor lasted 18 minutes (

CTBTO infrasound monitoring stations have recorded the explosion of a meteor on 22 April over the Western United States. According to Canadian scientist Elizabeth Silber, the data indicates that the meteor’s explosion released energy of around 4 kilotons, comparable to a small nuclear explosion.

Read the article here.