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Contact: Kevin Krajick
The Earth Institute at Columbia University

Paul Richards, Earth Institute at Columbia University

Caption: Paul Richards, a seismologist at Lamont-Doherty Earth Observatory, discusses the greatly expanded capabilities of instruments able to detect clandestine nuclear tests.

Credit: Courtesy Comprehensive Test Ban Treaty Organization

Usage Restrictions: Use this image to link to the video on YouTube: http://www.youtube.com/watch?v=RpyF5T6W-Z0

Related news release: 2010 Korea bomb 'tests' probably false alarms, says study

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