Here’s the best information I have as to the cause.
Head of General Security says the blast was caused by a fire in a depot of highly explosive material, including Sodium nitrate, at Beirut's port. He said that material was confiscated from a ship months ago and stored there. #Lebanon
— Dalal Mawadدلال معوض (@dalalmawad) August 4, 2020
The port is pretty much destroyed.
— Barzan Sadiq (@BarzanSadiq) August 4, 2020
There are several clear videos of what happened. A fire led to a very damaging explosion.
Clearer video of the massive secondary explosion in Beirut https://t.co/NCGQXJBtyz
— Danny Makki (@Dannymakkisyria) August 4, 2020
The explosion in Beirut seen from a better viewpoint, it might have been fireworks storage, you can hear and see what look like fireworks exploding before the big explosion pic.twitter.com/K2exsP1XW2
— CNW (@ConflictsW) August 4, 2020
The red cloud is NO2, the product of a nitrate explosion. The smooth white cloud that rapidly expands is water condensing in the shock wave.
This isn't that complicated, people. There is a fire and a secondary explosion. There are literally none of the phenomena one sees with a nuclear explosion. pic.twitter.com/OeT2ohd7hg
— Jeffrey Lewis (@ArmsControlWonk) August 4, 2020
It is NOT a nuclear explosion.