How 'Big' Was North Korea's Nuclear Test

CNN: North Korea's nuclear tests are getting more powerful

(CNN)Ten years, five nuclear tests, and they appear to be getting stronger.

North Korea claimed to have detonated a nuclear warhead Friday.

At an estimated 10 kilotons, it's thought to be the most powerful explosion yet.

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WNU Editor: Western sources are saying that today's North Korean nuclear test was around 10 Kilotons. Russian sources are saying 30 Kilotons .... Deadlier Than Nagasaki: North Korea's Nuke Test 30 Kilotonnes in Capacity (Sputnik).

Update #1: Q&A: Everything you need to know about the North Korean nuclear test (Washington Post)
Update #2: North Korea's 'biggest' nuclear test sparks global outrage (BBC)
Update #3: Decoding North Korea’s Claim of a Successful Nuclear Test (NYT)