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Cause of 'skyquakes' still a Magic Valley mystery

Shawn Willsey, geology profession with College of Southern Idaho.
Shawn Willsey, geology profession with College of Southern Idaho.(KMVT)
Published: Mar. 5, 2019 at 5:58 PM MST
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Southern Idaho residents reported hearing a booming and shrieking sounds that caused them concern on Monday evening. Many speculated on KMVT's

that the the event was an earthquake or a military exercise.

"I can't tell what it is, but I can tell you what it isn't," said professor of geology at the College Southern Idaho Shawn Willsey. "What it isn't is it's not an earthquake. If you actually pay attention to them when they occur it's acoustic, they're sound waves it's not actually the ground shaking, although sometimes the sound vibrations can cause a little bit rattling in your house or a structure, or something like that."

Willsey goes on and says that he notices the "skyquake" event's typically occur around night, when there's high pressure in the area.

"My hypothesis, right or wrong, is that they're probably related to the Sailor Creek bombing range, south of Mountain Home" Willsey says.

KMVT was able to get in touch with Mountain View Air Force base who says they had no aircraft in the air last night, or around the the time the "skyquake" was reported. However, an individual from public affairs for the base, could not confirm that a separate military outfit wasn't responsible for the noise.