Explosion

An explosion is a rapid increase in volume and release of energy in an extreme manner, usually with the generation of high temperatures and the release of gases. An explosion creates a shock wave. If the shock wave is a supersonic detonation, then the source of the blast is called a "high explosive". Subsonic shockwaves are created by low explosives through the slower burning process known as deflagration.

Black smoke from an explosion rising after a
bomb detonation outside Nahr al-Bared, Lebanon

Gasoline explosions, simulating bomb drops at an airshow

Detonation of explosives