What best describes a seated explosion?

A seated explosion is best described as one that causes a crater of damage. This type of explosion is typically associated with a significant release of energy in a localized area, resulting in the formation of a distinctive crater due to the intense pressure and force generated by the explosion. This can happen in situations where there is a buildup of explosive materials that eventually detonates, creating a sudden and violent reaction that leaves a mark on the landscape.

Other descriptions, while they may portray features of explosive events, do not encapsulate the essence of a seated explosion as effectively. For instance, while some explosions may involve slow pressure release, this does not align with the immediate and forceful impact characteristic of a seated explosion. Similarly, an explosion with dispersed fuels typically relates to different operational dynamics and does not specifically denote the focused impact causing a crater. The mention of subsonic speeds also does not capture the critical damage aspect, as seated explosions are generally associated with rapid, high-energy reactions rather than their speed in terms of shockwave propagation. Thus, the defining characteristic of a seated explosion is indeed its ability to create a crater of damage due to concentrated explosive force.