What type of injury is primarily caused by the force of the explosion?

The type of injury primarily caused by the force of an explosion is classified as blast pressure injuries. These injuries result from the rapid changes in air pressure that occur when an explosion occurs. The intense wave of force generated by the explosion can cause significant trauma to the body, including ruptured eardrums, lung injuries, and blunt force trauma, depending on the proximity to the blast and the individual's position.

Blast pressure injuries happen because as the explosion occurs, it creates a high-pressure wave that travels outward from the explosion site. When this wave impacts a person, it can lead to various forms of damage to internal organs and bodily structures that are not externally visible but can be life-threatening. Understanding blast pressure is critical in the field of fire investigation as it helps in assessing the injury patterns of victims in explosion scenarios.