Is any explosion which is more powerful than that of a Hypernova?
The Big Bang. But remember, no one knows what caused the Big Bang because a hypernova is caused by a hypergiant star like Canis Majoris, but space didn't even exist before the Big Bang, but a hypernova is nothing compared to the catastrophic explosion that lasted for billions of years.
The only real difference between supernovae and hypernovae is size. For a stellar explosion to be classified as a hypernova, it must be significantly more energetic than a supernova. Additionally, it's thought that the longer lasting gamma rays traveling through the universe originated from hypernova explosions.
The atomic bombs are nuclear weapons that use a nuclear chain reaction to create a Hugh explosion. The by-product of the nuclear blast is radiation. Atomic explosion is created by setting off a lot of dynamite around a core of nuclear material. The blast compresses the material together and makes it unstable. A hydrogen bomb is a much more powerful bomb. It is the result of a small nuclear explosion that compresses more powerful radioactive…