The United States military has dropped the “Mother of All Bombs” — aka MOAB — in Afghanistan. It was the first time the bomb was deployed in battle, which has the dubious distinction of being the biggest non-nuclear bomb in the American military arsenal.
The Pentagon announced the MOAB had been dropped in Afghanistan near the Pakistan border near a cave network thought to be used by ISIS. It is the second of two major overseas strikes by the US military, the first occurring in Syria as a retaliation against the use of chemical weapons, in as many weeks.
In this U.S. Air Force handout, a GBU-43/B bomb, or Massive Ordnance Air Blast (MOAB) bomb, explodes November 21, 2003 at Eglin Air Force Base, Florida. MOAB is a 21,700-pound that was droped from a plane at 20, 000 feet. (Photo by USAF via Getty Images)
Given that the MOAB is the largest non-nuclear bomb the United States has engineered, just how does it compare to the atomic bombs dropped on Japan near the conclusion of WWII? Well, the MOAB may be huge by conventional standards, but it is nowhere near as powerful as the atomic bombs dropped on Hiroshima and Nagasaki. To give perspective, here are the equivilant tons of TNT contained in the explosion of each bomb (referred to as tonnage):
Little Boy/Hiroshima = 15,000 tons of TNT
Fat Man/Nagasaki = 21,000 tons of TNT
MOAB = 11 tons of TNT
FOAB = 44 tons of TNT
From left to right, the severe blast/fire zones of: W88 (475 kt), W76 (100 kt), Little Boy (15 kt), MOAB (0.01 kt). pic.twitter.com/mmZjMZ7aVB
— Alex Wellerstein (@wellerstein) April 13, 2017