Fire Near an Explosives Magazine: Critical Procedures for Blasters and Site Supervisors

Fire Near an Explosives Magazine: Critical Procedures for Blasters and Site Supervisors

Recent years of persistent dry conditions across much of the western United States have significantly heightened wildfire risks, resulting in an increasing number of incidents where fires threaten or directly involve explosives storage magazines. In such situations, immediate and disciplined action is essential. The overriding priority must always be life safety — protecting personnel, emergency responders, and the public — rather than preserving explosive materials. Heat transfer from an approaching or engulfing fire can rapidly escalate the situation into deflagration or full detonation, particularly when sensitive initiators such as detonators are present.

This guide outlines mandatory steps aligned with 27 CFR Part 555 (Commerce in Explosives), best practices for emergency response, and coordination with fire authorities. Real-world incidents underscore the importance of strict adherence to these procedures.

 “Most catastrophic explosives incidents begin with a small, seemingly manageable fire that someone believed they could control.”

1. First Rule: Life Safety — Not Product

Your absolute priority is protecting human life. In the event of a fire near an explosives magazine:

• Do not attempt to “save” or remove explosive materials
• Do not approach the magazine if fire is established or spreading
• Do not delay evacuation for any reason

Evacuate immediately and account for all personnel.

Real Incident Lesson: In 1988, six firefighters from the Kansas City, Missouri, Fire Department were killed when they attempted to extinguish a fire involving trailers containing ammonium nitrate/fuel oil (ANFO) blasting mixtures at a highway construction site. The fire led to two massive explosions that destroyed pumper trucks and killed the responders. The tragedy highlighted the extreme danger of approaching or fighting fires involving explosive storage.

2. Understand the Hazard

Fire in proximity to explosives creates extreme and rapidly escalating risks:

• Heat can cause packaging failure, leading to deflagration that transitions to detonation
• Confinement within the magazine increases the violence of any reaction
• Detonators and initiators are particularly sensitive to heat and shock
• Smoke and thermal exposure can compromise material stability

The time from initial fire exposure to potential catastrophic failure can be measured in minutes, not hours.

3. Establish a Safe Distance Immediately

Evacuate to a conservative distance based on the ATF Table of Distances (27 CFR § 555.218) for the quantity and type of explosives stored, but err on the side of greater separation in an emergency.

Immediate actions:

• Clear all non-essential personnel from the area
• Stop all operations
• Control access roads and prevent re-entry

Treat the incident as a potential mass explosion hazard.

4. Notify Emergency Services

Call 911 without delay. Provide clear, critical information:

• Exact location of the site and magazine
• Confirmation that explosives are present or threatened
• Type and estimated quantity of explosives (if known)
• Magazine type (e.g., Type 1, Type 2, Type 4, or Type 5)
• Any known hazards or access issues

5. Coordinate with the Fire Department

Upon arrival of firefighters, immediately inform the incident commander:

• Explosives are stored in the magazine
• Approximate quantity and types
• Precise distance and location of the magazine relative to the fire

Fire departments may elect a defensive strategy — allowing the fire to burn while maintaining a wide perimeter and focusing on exposure protection. This is frequently the safest approach when explosives are involved and should be respected.

6. Do Not Fight the Fire Yourself (In Most Cases)

Personnel should not attempt fire suppression involving or near the magazine unless all of the following conditions are met:

• The fire is small and clearly not yet involving the magazine
• You are properly trained and equipped, and it can be done safely from a distance
• No risk of approaching or opening the magazine

Never open a heated magazine, as introducing oxygen or disturbing its contents can trigger an event. Approach only if cleared by qualified authorities.

6.1 Emergency Relocation of Explosives (Only If Time Permits and It Can Be Done Safely)

In rare situations where a fire is approaching but not yet involving the magazine, there is sufficient time, adequately trained personnel, and a clear, safe route, licensees may consider relocating explosives to another compliant magazine as a protective measure. This is a high-risk optional action — not a requirement — and must never compromise life safety.

Key Regulatory and Safety Considerations (27 CFR Part 555):

• Explosive materials may only be moved while being transported to a place of storage by a licensed or permitted person (§ 555.205).
• The destination magazine must fully comply with Subpart K storage standards (construction, locking, location per Table of Distances, etc.).
• Movement must follow all applicable transportation safety rules, including proper packaging, vehicle placarding (if on public roads), and secure loading/unloading.
• Detonators must be transported and stored separately from other explosives.
• If the relocation involves temporary storage exceeding 24 hours or changes to magazine use, notify the ATF Director, Industry Operations as required under § 555.63.

Strict Procedures if Relocation Is Considered:

1. Assess feasibility first — confirm the fire is far enough away to allow safe removal and transport without exposure to heat or smoke.
2. Evacuate non-essential personnel and establish a safe perimeter.
3. Notify the local fire authority and ATF (via your local Industry Operations office) of the planned action if time allows. In true emergencies, verbal approval for variations may be possible under § 555.22(b).
4. Use only qualified, trained personnel wearing appropriate PPE.
5. Load and transport carefully — Use approved vehicles; keep loads secure and separated by compatibility (e.g., no detonators with bulk explosives).
6. Document everything — Record quantities moved, origin and destination magazines, times, personnel involved, and any issues.
7. Secure the receiving magazine immediately upon arrival and update inventory records.
8. Do not attempt relocation if it would delay evacuation or endanger anyone.

Important Warning: If there is any doubt about the availability of time or safety, do not attempt relocation. ATF guidance for natural disasters (including wildfires) emphasizes that preservation of life is paramount and encourages pre-planning, but relocation is voluntary and secondary to evacuation.

7. ATF Regulatory Expectations and Compliance

Under 27 CFR Part 555, Subpart K – Storage, licensees and permittees must ensure magazines are fire-resistant (where required by magazine type) and located in accordance with the Table of Distances. Additionally:

• Any person storing explosives must notify the local authority having jurisdiction for fire safety of the type, magazine capacity, and location — orally before the end of the day storage begins, and in writing within 48 hours (§ 555.201(f)).
• Prohibit smoking, open flames, and spark-producing devices within 50 feet of outdoor magazines (§ 555.212).

Post-incident requirements:

• If explosives are lost, damaged, compromised, or unaccounted for, report via ATF Form 5400.5 within 24 hours of discovery (§ 555.30).
• ATF has the authority to inspect the site of any fire involving or suspected of involving explosive materials (§ 555.31).

8. State and Local Authority Requirements

Requirements vary by jurisdiction. In states such as Colorado, the Division of Fire Prevention and Control (DFPC) and local fire code officials may impose additional obligations, including immediate reporting, cooperation with investigations, and potential operational suspensions. State authorities often emphasize public risk and operational safety.

9. After the Fire — Do Not Assume Safety

Even after the fire is extinguished:

• Do not re-enter the magazine or handle the contents immediately
• Do not move or use any potentially heat-damaged explosives

Residual hazards include thermally compromised materials, unstable detonators, and altered sensitivity. Await clearance from the fire authority, ATF (if involved), and your company’s qualified safety or explosives specialist. A controlled inspection and inventory must follow.

Real Incident Lesson: In December (the year prior to recent reports), three licensed explosives magazines containing fireworks on a property at Bundamba, Australia, were engulfed in a grassfire. While the magazines were designed to contain internal events, the external fire highlighted the importance of vegetation control and waiting for official clearance before any re-entry or assessment.

10. Thorough Documentation

Comprehensive records protect you during investigations, insurance claims, and regulatory reviews. Document:

• Timeline of events (discovery, notifications, evacuations)
• Weather conditions at the time
• Apparent fire origin (if observable from a safe distance)
• Photographs and videos (taken safely)
• Personnel involved and actions taken
• Pre- and post-incident inventory status

11. Root Cause Analysis

Conduct a formal review to prevent recurrence. Key questions include:

• Was vegetation and combustible material adequately controlled around the magazine?
• Were potential ignition sources present nearby?
• Was the magazine location appropriate per the Table of Distances and site conditions?
• Had the required seven-day magazine inspections (§ 555.204) been performed and documented?

Real Incident Lesson: Investigations of multiple bushfire threats to magazines in Queensland, Australia (including 2020 reports), revealed that inadequate vegetation management and failure to maintain clear zones often allowed fires to breach exclusion areas. In one case, the magazine itself was not directly affected because responders enforced a strict perimeter, but light vehicles breached fume zones — underscoring the need for disciplined access control.

12. Consequences of Inadequate Response

Mishandling such an incident can lead to:

• ATF violations and potential license actions
• State fines, operational shutdowns, or permit revocations
• Significant civil liability
• Criminal exposure in cases of negligence resulting in harm

The 1988 Kansas City incident resulted in six firefighter fatalities and served as a stark reminder of the human and regulatory costs of engaging fires involving explosive storage.

Key Takeaway for Blasters

You cannot “manage” a fire around explosives. Instead, you manage people and distance. Rapid evacuation, clear communication with responders, and strict adherence to “do not approach” protocols remain the most effective defenses.

Field Checklist (Print and Keep Accessible)

If fire is near or threatening an explosives magazine:

1. 🔥 Evacuate immediately — life safety first
2. 🚧 Establish a large, conservative perimeter
3. 📞 Call 911 and report explosive involvement
4. 👨‍🚒 Brief responders fully on the explosive type, quantity, and location
5. 🛑 Do not fight the fire unless it is small, safe, and non-involving
6. ❌ Do not approach or open the magazine
7. 📄 Document all actions, timeline, and observations
8. ✔ Wait for official clearance before re-entry or handling
9. 📊 Conduct root cause analysis
10. 🔐 Implement preventive improvements (vegetation control, ignition source elimination, etc.)

This article is for educational and training purposes only. It does not constitute legal advice. Always consult the most current version of 27 CFR Part 555, official ATF publications, your state fire regulations, and qualified legal or compliance professionals for site-specific guidance.