How quickly can a munitions fire detonate after exposure to ignition?

• A. In as little as 45 seconds.
• B. Approximately 10 minutes.
• C. Only after several hours.
• D. Never.

Answer: (A)

When ignition starts, detonation of a munition can come quickly, leaving only a short window to react. This reflects how the initiating system in many munitions drives a rapid progression to an explosive event, so a device that ignites can detonate within a time frame on the order of seconds to under a minute. The phrase “in as little as 45 seconds” captures that urgency—the danger exists even though there is a brief countdown before detonation. Because of that, responders treat any ignition as an imminent detonation threat, keep a wide safety distance, evacuate the area, and call for explosive ordnance disposal experts. Timings of minutes, hours, or never after ignition do not align with how these devices behave once they’re triggered, so the emphasis is on the very limited time available to move people away and secure the scene.