IT SURE DID LOOK EQUIVALENT TO A TACTICAL NUKE: Beirut Blast: How Many Kilotons? “I wrote Lebanon expert Michael Totten to ask about the blast, and he said he heard that the Lebanese Army has been storing confiscated high explosives there since 2014. If we assume that it’s ANFO rather than straight ammonium nitrate, that’s about 72% as effective as TNT, and with just under twice the detonation velocity of ammonium nitrate. That yields a blast of 1.98 kilotons.”

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