The weapon was up to 10 times more powerful than the bomb that destroyed Hiroshima.
It nevertheless destroyed Hiroshima and caused hundreds of thousands of casualties.
The bomb that destroyed Hiroshima in 1945 was 12 kiloton.
The atomic bomb that destroyed Hiroshima had an explosive force of about 15 kilotons.
Each carries from 6 to 10 nuclear warheads, every one many times as powerful as the bomb that destroyed Hiroshima.
It came three days after the first bomb destroyed Hiroshima.
Within a month of that first, successful test, two atomic bombs destroyed Hiroshima and Nagasaki.
The atomic bomb that destroyed Hiroshima had a strength equivalent to 15,000 tons of high explosives.
The atomic bomb that destroyed Hiroshima in 1945 had the power of 13 or 14 kilotons.
Each is meant to be about seven times as powerful as the bomb that destroyed Hiroshima.