This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.
The Air Force detonated two ballistic missile rocket motors on Tuesday, causing a boom that was heard in Tooele and Davis counties.
The motors were part of Trident I ballistic missiles that are being eliminated as part of the START treaties. Only the rocket motors and propellants were destroyed, according to a press release from Hill Air Force Base. No nuclear material was part of the detonation.
When the motor and propellant is detonated, it creates a boom and shockwave as good as a conventional bomb.
The detonations Tuesday were at 11:39 a.m. and 1:12 p.m.
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