<p>Comparison of the first automatic location estimates of the 2006, 2009 and 2013 declared nuclear tests by North Korea.
</p>
Slide presented at the press briefing (CTBTO International Data Centre)
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ctbto/8468260426/">DPRK nuclear test - CTBTO press briefing 12.02.2013</a>