Monitoring Comprehensive Nuclear-Test-Ban Treaty

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geophysical , other technologies used monitor compliance treaty: forensic seismology, hydroacoustics, infrasound, , radionuclide monitoring. technologies used monitor underground, waters , atmosphere sign of nuclear explosion. statistical theories , methods integral ctbt monitoring providing confidence in verification analysis. once treaty enters force, on-site inspection provided concerns compliance arise.


the preparatory commission comprehensive test ban treaty organization (ctbto), international organization headquartered in vienna, austria, created build verification regime, including establishment , provisional operation of network of monitoring stations, creation of international data centre, , development of on site inspection capability.


the monitoring network consists of 337 facilities located on globe. of may 2012, more 260 facilities have been certified. monitoring stations register data transmitted international data centre in vienna processing , analysis. data sent states have signed treaty.


subsequent nuclear testing

three countries have tested nuclear weapons since ctbt opened signature in 1996. india , pakistan both carried out 2 sets of tests in 1998. north korea carried out 6 announced tests in 2006, 2009, 2013, 2 in 2016 , 1 in 2017. 6 north korean tests picked international monitoring system set comprehensive nuclear-test-ban treaty organization preparatory commission. north korean test believed have taken place in january 2016, evidenced artificial earthquake measured magnitude 5.1 u.s. geological survey. in september 2017 supposedly first successful north korean hydrogen bomb test took place. estimated have explosive yield of 120 kilotons .








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