https://www.cdc.gov/niosh/docket/archive/pdfs/NIOSH-125/125-ExplosionsandRefugeChambers.pdfFrom mine studies, the blast wave causes secondary trauma by throwing people against fixed objects (or objects against people) At given overpressures, expect the following:
Peak Maximum
overpressure wind speed Effect on structures Effect on the human body 1 psi 38 mph Window glass shatters Light injuries from
fragments occur
2 psi 70 mph Moderate damage to People injured by flying
houses (windows and glass and debris
doors blown out and
severe damage to roofs)
3 psi 102 mph Residential structures Serious injuries are
collapse common, fatalities may
occur
5 psi 163 mph Most buildings collapse Injuries are universal,
fatalities are widespread
10 psi 294 mph Reinforced concrete Most people are killed
buildings are severely
damaged or demolished
20 psi 502 mph Heavily built concrete Fatalities approach 100%
buildings are severely
damaged or demolished
This would make the MOAB particularly effective against such targets as enemy combatants hiding in tunnels and caves.