Hundreds of people from Weber County to Utah County, and some as far north as Rock Springs, Wyoming reported that they felt shaking or heard loud booms Tuesday night around 9 p.m.
The FOX 13 Newsroom received several calls from concerned citizens about the phenomena shortly after 9 p.m., but the cause remains a mystery.
Interestingly, for the past two weeks, people living in the Red Bank area of Lexington County, South Carolina have reported hearing booms late at night or early in the morning too.
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