What does the term "blast" refer to in the context of an explosion?

In the context of an explosion, the term "blast" primarily refers to the shockwave generated by the rapid expansion of gases resulting from the explosion. When an explosive material detonates, it releases a substantial amount of energy, which creates a sudden pressure change in the atmosphere. This pressure wave travels outward at high speed from the point of the explosion, causing damage to structures and can injure individuals in the vicinity.

The shockwave is a crucial aspect of understanding the mechanics of explosions, as it is the primary mechanism through which damage occurs, influencing how far the effects of the explosion are felt. This underscores its significance in both safety planning and crisis management, where understanding the blast effect can help in creating effective response strategies and response protocols.