About: Explosion Consequence Analysis

Injury/Fatality to Personnel calculations are dependent upon the munitions stored; this ECA is for blast only. Fragments must be calculated using the Gurney Equations for Fragment Velocity.

The national authority should formally accept this risk to the general public if current storage levels are to be maintained

Explosion Consequence Analysis (ECA)

An Explosion Consequence Analysis (ECA) is a structured process, utilizing explosives science and explosives engineering, to provide scientific evidence of the potential hazard or risk to individuals and property from blast effects and fragmentation in the event of an undesirable explosive event.

Damage to Windows of 4mm Thick Annealed Glass
Small Window 0.55m by 0.55m  
Medium Window 1.25m by 0.55m  
Large Window 1.25m by 1.55m  
Plot Pressure Impulse Diagram
Minimum Range to No Break (m)
Small Window  
Medium Window  
Large Window  

Ground Vibration (m)
Maximum Effected Range
Injury/Fatality to Personnel Range (m)
Fatal Distance
Lung Damage
Eardrum Rupture
Damage to Brick Structures (m)
Houses completely demolished
Houses badly damaged, beyond repair, require demolition
Houses rendered uninhabitable, can be repaired with extensive work
Houses rendered uninhabitable, can be repaired reasonably quickly
Houses require repairs, serious inconvenience but remain habitable