US EditionMarines: ‘One-in-a-Million’ Malfunction Caused Explosion over I-5
Marine investigators identified a rare electronic time-fuze malfunction as the cause of an artillery round prematurely detonating, striking a parked CHP vehicle during a live-fire demonstration.
- A report by the Marines confirmed a 'one-in-a-million' fuze glitch caused an October 2025 artillery explosion over the 5 Freeway that struck a CHP vehicle at Camp Pendleton.
- During the 250th Marine Corps birthday celebration, the report confirmed the decision to have Vice President JD Vance there was made on Oct. 15, and Secretary Pete Hegseth was present; safety procedures were followed despite confusion over the freeway closure.
- Investigators ruled out human error, identifying the failure as a "statistical anomaly that was outside any reasonable probability" involving an M767A1 fuze manufactured to a tolerance of one defect in a million.
- Retired artillery officer Mike Roach noted that 'no organization does it better than the Marine Corps,' as officials refine artillery protocols following the incident.
- The service is reviewing findings to potentially adjust safety procedures for future live-fire demonstrations conducted near public infrastructure, following the incident involving the artillery fuze malfunction.
17 Articles
17 Articles
‘One in a million’ malfunction rained shrapnel onto Interstate 5 near California's Camp Pendleton, report says
LOS ANGELES — The detonation of a military round over the 5 Freeway during an exercise at Camp Pendleton in October was a “one in a million” malfunction that investigators have struggled to explain, according to a report from the U.S. Marine Corps released Friday. The investigation determined the military round exploded before it was supposed to because the device’s fuze went off early, ...
'One in a million' malfunction rained shrapnel onto 5 Freeway near Camp Pendleton, report says
An artillery shell fired over Interstate 5 during a live-fire demonstration at Camp Pendleton prematurely exploded, military officials said in a report, calling the incident a "one-in-a-million" malfunction.
Rare Marine Artillery Mishap Sent Debris Onto Interstate
During a California event last year, a highly unusual artillery malfunction caused a shell to detonate over Interstate 5, causing debris to hit a California Highway Patrol vehicle, the Marine Corps has concluded.
‘One-in-a-million’ malfunction caused explosion over interstate, Marines say
The USMC has determined that a "one-in-a-million" malfunction in an artillery shell's fuze caused it to explode over Interstate 5 and strike a California Highway Patrol vehicle with debris during a 250th anniversary event in October 2025.
Marines: ‘One-in-a-million’ malfunction caused explosion over I-5
The USMC has determined that a "one-in-a-million" malfunction in an artillery shell's fuze caused it to explode over Interstate 5 and strike a California Highway Patrol vehicle with debris during a 250th anniversary event in October 2025.
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